Mazama, WA Climate: Temperature & Rain by Month
Average temperature and precipitation from NOAA NCEI 1991–2020 normals →, with a derived climate comfort score
30-year climate normals (1991-2020) from Mazama's primary NOAA station, MAZAMA.
The climate verdict for Mazama
Mazama, Washington has a mixed annual climate rather than one dominant extreme. Its NOAA normal shows an annual average of 45°F. At 54/100 (moderate) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 31% of scores.
- 45°F
- yearly average temperature, NOAA normal
- 54/100
- comfort score, above 31% of station-mapped location scores
- 23.1"
- annual precipitation · 123" snow
- 143 days
- frost-free days per growing season
Mazama: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00455133 · Mazama, WA 45°F mean · 23.1" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-DRY · SWING-WIDE · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 45°F
- RANK-COOL #1,372
- PHOTO-FINISH ≈ N Springfield L…
- PRCP-DRY 23.1"
- SWING-WIDE 47°F
- COMF-LOW 54/100
- LOAD-HEAT 7,528 HDD
- STN-1 USC00455133
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: N Springfield Lake, VT (+ 0 °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 WA station list.
- Mazama (this station) 45°F
- Cold Watertown, NY 45°F
- Hot Muddy Gap, WY 45°F
- Near N Springfield L…, VT 45°F
- Near Plattsburgh, NY 45°F
Climate Living Index · Mazama
Mazama: 27/100 · grade F
Mazama publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Mazama, not an official NOAA rating. Rankings still use Comfort Score 54/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 23.1 in · 11.9 from 35 in | 58/100 · C |
| Normal heat + freeze calendar | 177 calendar days | 27/100 · F |
| Annual temperature balance | 45.4°F · 22.1° from 67.5°F | 21/100 · F |
| Frost-free season | 143 days/year | 20/100 · F |
| Snowfall burden | 123.1 inches/year | 0/100 · F |
Mazama · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Mazama is a continental Köppen climate: Dsb
Coldest-month mean 22.3°F and warmest-month mean 69.6°F place this station in continental, dry-summer, warm summer climates (Dsb). Class Dsb is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: continental, specifically continental, dry-summer, warm summer.
- Köppen code
- Dsb
- Group
- Continental
- Warmest month
- 69.6°F
- Coldest month
- 22.3°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 Mazama sits across the climate record
Three NOAA fields for Mazama's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 80%
- Among 6,861 stations, Mazama sits in the cooler third of annual means.
- Annual precipitation
- 32nd percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- 69th percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How Mazama compares across U.S. station-mapped locations
Mazama's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
54 31st percentile score exceeds 31% 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%). Below this entry.
- 40–50: 1,113 station-mapped locations (18%). Below this entry.
- 50–60: 1,329 station-mapped locations (21%). This entry sits in this band.
- 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
Mazama's measured station temperature trend
MethodologyAcross 43 complete annual observations from 1970 to 2025, MAZAMA warmed at a fitted rate of 0.41°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Mazama primary station fitted change +0.41 °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 | 29°F (-2°C) | 16°F (-9°C) | 23°F (-5°C) | 3.6" | 34.3" | 30.9 | 0.0 |
| February | 37°F (3°C) | 19°F (-7°C) | 28°F (-2°C) | 2.4" | 19.6" | 27.8 | 0.0 |
| March | 46°F (8°C) | 26°F (-3°C) | 36°F (2°C) | 2.0" | 11.2" | 28.1 | 0.0 |
| April | 58°F (14°C) | 33°F (0°C) | 45°F (7°C) | 1.1" | 0.2" | 16.2 | 0.0 |
| May | 68°F (20°C) | 41°F (5°C) | 55°F (13°C) | 1.1" | 0.0" | 4.1 | 0.2 |
| June | 75°F (24°C) | 48°F (9°C) | 62°F (16°C) | 1.0" | 0.0" | 0.1 | 1.8 |
| July | 85°F (29°C) | 55°F (13°C) | 70°F (21°C) | 0.6" | 0.0" | 0.0 | 9.5 |
| August | 84°F (29°C) | 53°F (12°C) | 69°F (20°C) | 0.5" | 0.0" | 0.0 | 8.6 |
| September | 74°F (24°C) | 45°F (7°C) | 59°F (15°C) | 0.8" | 0.0" | 1.4 | 1.6 |
| October | 57°F (14°C) | 34°F (1°C) | 45°F (7°C) | 2.1" | 2.3" | 14.1 | 0.0 |
| November | 39°F (4°C) | 25°F (-4°C) | 32°F (0°C) | 3.8" | 17.6" | 25.8 | 0.0 |
| December | 28°F (-2°C) | 16°F (-9°C) | 22°F (-5°C) | 4.0" | 37.9" | 31.0 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 87°F around July 28, short of 90°F on every date, while 177 dates carry a normal low at or below freezing, the coldest 14°F near January 1.
The freezing stretch
The normal low stays at or below 32°F into April 13, then returns to freezing around October 20, covering 177 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 January 1, when 51% of years recorded at least a hundredth of an inch. The driest is August 1 at 13%. Summed across the calendar, that is about 113 wet dates a year.
The widest day
August 4 carries the biggest normal gap between afternoon and dawn, 31°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Mazama.
Monthly Precipitation
Average monthly rainfall and snowfall
Snow: 34.3"
15.3 days with precipitation
Snow: 19.6"
11.2 days with precipitation
Snow: 11.2"
10.7 days with precipitation
Snow: 0.2"
7.4 days with precipitation
7.5 days with precipitation
6.8 days with precipitation
4.5 days with precipitation
4.3 days with precipitation
5.6 days with precipitation
Snow: 2.3"
10.0 days with precipitation
Snow: 17.6"
14.1 days with precipitation
Snow: 37.9"
15.2 days with precipitation
Mazama's wet season runs through the cold months
December, January and February carry 43% of the year's precipitation here, while June through August contribute 9%. That is the cool-season-dominant pattern of the West Coast and the higher inland West, where storm tracks swing south in winter and summer turns dry; the thermometer meanwhile shows a wide 47.3°F gap between its warmest and coldest month.
- Wettest month
- December, 4.0"
- Driest month
- August, 0.5"
- Wettest three months
- December, November, January (50% of the year)
Shares are computed from this station's own 1991-2020 monthly precipitation normals. A cool-season label means the December-February share reaches 35%. Where snow falls, the monthly figures above report liquid-equivalent precipitation, so a wet winter month is not necessarily a rainy one.
How Mazama's precipitation splits across the calendar
About 113 days a year record measurable precipitation here, carrying 23.1" between them, or roughly 0.20 inches on a typical wet day. That sits in the middle band: neither the many-light-days pattern of the Pacific Northwest and the Great Lakes, nor the few-heavy-events pattern of the Gulf and the desert Southwest.
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year and say nothing about the heaviest single storm on record.
Winter brings real snow to Mazama
Mazama averages 123.1 inches of snowfall a year, with December the snowiest month on the normals, spread across roughly 50 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: 123.1 inches of depth.
- Days recording measurable snow: about 50 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 53% 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 29
50% probability date
Last Spring Freeze
May 9
50% probability date
Growing Season
143 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
7,528
Higher = more heating needed
Cooling Degree Days
401
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
Nationwide similar cities
Other rankable U.S. places outside WA closest to Mazama 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 (45°F here).
- Alberton, MT 45°F · 0.0°F off
- Augusta, MT 45°F · 0.0°F off
- Beloit, WI 45°F · 0.0°F off
- Deadwood, SD 45°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (23.1" here), excluding temperature-peer places.
- Mccall, ID 23.1" · 0.0" off
- Sterling, AK 23.1" · 0.0" off
- Norton, KS 23.1" · 0.0" off
- Broken Bow, NE 23.0" · 0.0" off
Snow and freeze rhythm
When cold and snow define Mazama
heating led · moderate · mid swing
Mazama's energy balance leans toward cold weather: 7,528 annual heating degree days against 401 for cooling. Its 47.3°F seasonal range still makes the monthly rows more useful than the annual average alone.
Only about 143 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. Mazama coldest normal
December
Averaging 22°F (-5°C), this month sits below freezing for the month as a whole, not merely overnight.
-
2. Mazama typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. Mazama snow peak
December
Mazama averages 123.1 inches of snow a year, with December the snowiest month on the normals.
Questions about Mazama's climate
How much snow does Mazama get? ▼
How cold does Mazama get in winter? ▼
How much energy does heating and cooling require in Mazama? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Mazama's primary station: MAZAMA (USC00455133). 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 Mazama; 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 Mazama 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.