College Obsy, AK Climate: Temperature & Rain by Month
Temperature and precipitation from NOAA NCEI 1991–2020 normals →, plus PlainClimate's derived comfort score
30-year climate normals (1991-2020) from College Obsy's primary NOAA station, COLLEGE OBSY.
The climate verdict for College Obsy
Winter sets the terms in College Obsy, Alaska. A pronounced 65.9°F seasonal swing and heating demand above twice the cooling total frame an annual average of 29°F. At 34/100 (below average) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 2% of scores.
- 29°F
- average temperature, NOAA 1991-2020 normal
- 34/100
- comfort score, above 2% of station-mapped location scores
- 13.3"
- annual precipitation · 64" snow
- 111 days
- frost-free growing season
College Obsy: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00502107 · College Obsy, AK 29°F mean · 13.3" precip
TEMP-COLD · RANK-COOL · PHOTO-FINISH · PRCP-DRY · SWING-WIDE · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COLD 29°F
- RANK-COOL #69
- PHOTO-FINISH ≈ Gulkana
- PRCP-DRY 13.3"
- SWING-WIDE 66°F
- COMF-LOW 34/100
- LOAD-HEAT 13,331 HDD
- STN-1 USC00502107
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Gulkana, AK ( -0.2 °F mean)
Instrument codes from this station's NOAA 1991–2020 normals, mean temperature, corpus warmth rank, photo-finish peer station, precipitation band, seasonal swing, comfort composite, degree-day load, and field book, not a livability rating.
Mean-temperature neighbourhood
Nationwide NOAA normal poles and nearest peers, not a reprint of every AK station list.
- College Obsy (this station) 29°F
- Cold Minchumina, AK 28°F
- Near Gulkana, AK 28°F
- Near Kobe Hill, AK 28°F
- Near N Pole, AK 28°F
College Obsy sits in Alaska, the #1 coldest U.S. state at 33.5°F statewide annual average - see all 50 coldest states ranked by NOAA normals
Climate Living Index · College Obsy
College Obsy: 7/100 · grade F
College Obsy publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for College Obsy, not an official NOAA rating. Rankings still use Comfort Score 34/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 13.3 in · 21.7 from 35 in | 23/100 · F |
| Snowfall burden | 64.3 inches/year | 13/100 · F |
| Normal heat + freeze calendar | 223 calendar days | 4/100 · F |
| Frost-free season | 111 days/year | 3/100 · F |
| Annual temperature balance | 28.5°F · 39.0° from 67.5°F | 0/100 · F |
College Obsy · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
College Obsy is a continental Köppen climate: Dfc
Coldest-month mean -4.7°F and warmest-month mean 61.2°F place this station in continental, no dry season, cool summer climates (Dfc). Class Dfc is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: continental, specifically continental, no dry season, cool summer.
- Köppen code
- Dfc
- Group
- Continental
- Warmest month
- 61.2°F
- Coldest month
- -4.7°F
Source: official public datasets monthly normals (1991–2020) at the city’s primary station. This is a station classification, not a mapped regional consensus.
National standing · heating-led station
Where College Obsy sits across the climate record
Three NOAA fields for College Obsy's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 99%
- Among 6,861 stations, College Obsy sits in the cooler third of annual means.
- Annual precipitation
- Drier than 87%
- College Obsy's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- Wider than 99%
- Warmest-to-coldest month gap for College Obsy is large versus 6,861 complete station-years.
How College Obsy compares across U.S. station-mapped locations
College Obsy's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
34 2nd percentile score exceeds 2% of 6,189 station-mapped location scores
- 0–10: 0 station-mapped locations (0%). Below this entry.
- 10–20: 0 station-mapped locations (0%). Below this entry.
- 20–30: 96 station-mapped locations (2%). Below this entry.
- 30–40: 280 station-mapped locations (5%). This entry sits in this band.
- 40–50: 1,113 station-mapped locations (18%). Above this entry.
- 50–60: 1,329 station-mapped locations (21%). Above this entry.
- 60–70: 1,236 station-mapped locations (20%). Above this entry.
- 70–80: 650 station-mapped locations (11%). Above this entry.
- 80–90: 921 station-mapped locations (15%). Above this entry.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
College Obsy's measured station temperature trend
MethodologyAcross 67 complete annual observations from 1950 to 2025, COLLEGE OBSY warmed at a fitted rate of 0.34°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- College Obsy primary station fitted change +0.34 °C/decade
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 2°F (-17°C) | -11°F (-24°C) | -5°F (-20°C) | 0.7" | 10.4" | 31.0 | 0.0 |
| February | 12°F (-11°C) | -5°F (-21°C) | 3°F (-16°C) | 0.6" | 9.9" | 28.0 | 0.0 |
| March | 24°F (-5°C) | 1°F (-17°C) | 12°F (-11°C) | 0.5" | 7.1" | 31.0 | 0.0 |
| April | 44°F (7°C) | 22°F (-6°C) | 33°F (0°C) | 0.4" | 3.6" | 26.7 | 0.0 |
| May | 60°F (16°C) | 37°F (3°C) | 49°F (9°C) | 0.6" | 0.8" | 8.8 | 0.0 |
| June | 70°F (21°C) | 48°F (9°C) | 59°F (15°C) | 1.9" | 0.0" | 0.2 | 0.1 |
| July | 71°F (22°C) | 51°F (11°C) | 61°F (16°C) | 2.5" | 0.0" | 0.0 | 0.0 |
| August | 65°F (18°C) | 46°F (8°C) | 55°F (13°C) | 2.4" | 0.0" | 0.7 | 0.1 |
| September | 54°F (12°C) | 35°F (1°C) | 44°F (7°C) | 1.6" | 2.3" | 11.8 | 0.0 |
| October | 33°F (1°C) | 18°F (-8°C) | 26°F (-4°C) | 0.9" | 7.5" | 29.3 | 0.0 |
| November | 12°F (-11°C) | -1°F (-18°C) | 6°F (-15°C) | 0.8" | 11.2" | 30.0 | 0.0 |
| December | 5°F (-15°C) | -8°F (-22°C) | -1°F (-19°C) | 0.6" | 11.5" | 31.0 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 73°F around June 30, short of 90°F on every date, while 223 dates carry a normal low at or below freezing, the coldest -13°F near January 11.
The freezing stretch
The normal low stays at or below 32°F into May 1, then returns to freezing around September 22, covering 223 dates in all.
Derived from the normal daily minimum. This is a different measure from the 50%-probability frost dates shown elsewhere on this page, which come from NOAA’s frost product.
Where the wet dates fall
The likeliest wet date is August 7, when 52% of years recorded at least a hundredth of an inch. The driest is April 10 at 15%. Summed across the calendar, that is about 116 wet dates a year.
The widest day
May 18 carries the biggest normal gap between afternoon and dawn, 24°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for College Obsy.
Where College Obsy Stands Nationally
Winters bite deep and often: the normal nightly low dips to freezing or below on around 223 nights a year, placing this among the most frost-prone tenth of ranked stations.
A drier-than-most normal water year — around 13 inches, below what four out of five ranked stations collect.
College Obsy earns 2 nationally notable standings (outer quintiles) against 6,860 NOAA 1991–2020 normals stations; only those extremes render.
Monthly Precipitation
Average monthly rainfall and snowfall
Snow: 10.4"
8.8 days with precipitation
Snow: 9.9"
7.5 days with precipitation
Snow: 7.1"
5.7 days with precipitation
Snow: 3.6"
4.1 days with precipitation
Snow: 0.8"
6.8 days with precipitation
12.1 days with precipitation
14.4 days with precipitation
16.0 days with precipitation
Snow: 2.3"
12.3 days with precipitation
Snow: 7.5"
9.7 days with precipitation
Snow: 11.2"
9.8 days with precipitation
Snow: 11.5"
9.0 days with precipitation
College Obsy runs a summer-peaked wet season
51% of College Obsy's yearly precipitation falls in June, July and August alone, against the 25% an evenly spread year would give those three months. The wettest month is July at 2.5", on a wide 65.9°F gap between its warmest and coldest month. Warm-season convection and, across the Southwest, the North American monsoon produce this shape: rain arrives in short heavy bursts during the hottest part of the year rather than as long cool-season soaking.
- Wettest three months: July, August, June, taking 51% of the annual total between them.
- Driest month: April at 0.4".
- Winter share: 14% falls in December, January and February.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. A summer-peaked label means the June-August share reaches 35%; it describes timing across an average year, not any single season, and says nothing about how heavy an individual storm can be.
College Obsy is dry, and what does fall arrives gently
Only about 116 days a year record measurable precipitation here, 32% of the calendar, and they carry 13.3" between them. At roughly 0.11 inches on an average wet day, this is not the damp drizzle of a marine climate; it is an arid record in which precipitation is both uncommon and light when it appears.
The wettest month by count is August at about 16 wet days; the driest is April at about 4.
A low per-event average in a dry record is a statement about typical days only. Arid regions can still take a large share of a year's total from a single convective storm, which a normal cannot show.
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year, not the extremes within it.
Winter brings real snow to College Obsy
College Obsy averages 64.3 inches of snowfall a year, with December the snowiest month on the normals, spread across roughly 61 days that record measurable snow. That is depth accumulating on the ground, which is why it can exceed the annual precipitation figure: precipitation counts the liquid the snow melts down to, and fresh snow is mostly air.
- Annual snowfall: 64.3 inches of depth.
- Days recording measurable snow: about 61 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 48% of the year's precipitation.
NOAA 1991-2020 normals. The ten-to-one ratio is a convention, not a measurement: real ratios vary with temperature, so treat the share as an order of magnitude rather than an exact split.
Frost Dates & Growing Season
First Fall Freeze
September 6
50% probability date
Last Spring Freeze
May 18
50% probability date
Growing Season
111 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
13,331
Higher = more heating needed
Cooling Degree Days
47
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside AK closest to College Obsy on two NOAA annual-normal axes (mean temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest out-of-state peers by annual mean temperature (29°F here).
- Cooke City, MT 34°F · 5.7°F off
- Crested Butte, CO 34°F · 5.7°F off
- Silver Gate, MT 34°F · 5.8°F off
- Stanley, ID 34°F · 5.9°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (13.3" here), excluding temperature-peer places.
- Carrizozo, NM 13.3" · 0.0" off
- Roy, MT 13.3" · 0.0" off
- Saco, MT 13.4" · 0.0" off
- Salina, UT 13.3" · 0.0" off
Snow and freeze rhythm
When cold and snow define College Obsy
heating led · dry · high swing
Winter and seasonal range jointly define this record. College Obsy logs 13,331 heating degree days, more than twice its 47 cooling total, while the typical coldest-to-warmest-month gap reaches 65.9°F. The annual mean therefore compresses two materially different seasons.
Only about 111 days are frost-free in a normal year. That short interval is consistent with the cold-season signal, but the measure does not predict the exact first or last freeze in any one year.
-
1. College Obsy coldest normal
January
Averaging -5°F (-20°C), this month sits below freezing for the month as a whole, not merely overnight.
-
2. College Obsy typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. College Obsy snow peak
December
College Obsy averages 64.3 inches of snow a year, with December the snowiest month on the normals.
Questions about College Obsy's climate
How much snow does College Obsy get? ▼
How cold does College Obsy get in winter? ▼
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Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from College Obsy's primary station: COLLEGE OBSY (USC00502107). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The conservative exact name-and-state crosswalk finds no Census place match, so PlainClimate treats this as a station-mapped location and does not claim it is a municipality. No exact Gazetteer row for College Obsy; facility counts that depend on place identity are therefore an upper bound, not a municipal census.
On this page every temperature, precipitation, and derived score for College Obsy comes from its primary NOAA station record. No figure on this page is typed in by an editor - each value is rendered from NOAA 1991-2020 U.S. Climate Normals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 1991–2020 normals.