McHenry, ND Climate: Temperature & Rain by Month
Explore NOAA NCEI's 1991–2020 climate normals → and a clearly labeled PlainClimate comfort calculation
30-year climate normals (1991-2020) from McHenry's primary NOAA station, MC HENRY 3W.
The climate verdict for McHenry
Winter sets the terms in McHenry, North Dakota. A pronounced 61.7°F seasonal swing and heating demand above twice the cooling total frame an annual average of 40°F. At 44/100 (moderate) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 10% of scores.
- 40°F
- yearly average temperature, NOAA normal
- 44/100
- comfort score, above 10% of station-mapped location scores
- 21.1"
- annual precipitation · 60" snow
- 139 days
- frost-free days per growing season
McHenry: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00325730 · McHenry, ND 40°F mean · 21.1" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-DRY · SWING-WIDE · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 40°F
- RANK-COOL #412
- PHOTO-FINISH ≈ Grand Forks Univ
- PRCP-DRY 21.1"
- SWING-WIDE 62°F
- COMF-LOW 44/100
- LOAD-HEAT 9,330 HDD
- STN-1 USC00325730
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Grand Forks Univ, ND (+ 0.1 °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 ND station list.
- Hot Valley City, ND 41°F
- Near Grand Forks Univ, ND 41°F
- Near Max, ND 41°F
- McHenry (this station) 40°F
- Cold Westhope, ND 40°F
McHenry sits in North Dakota, the #2 coldest U.S. state at 41.0°F statewide annual average - see all 50 coldest states ranked by NOAA normals
Climate Living Index · McHenry
McHenry: 21/100 · grade F
McHenry publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for McHenry, not an official NOAA rating. Rankings still use Comfort Score 44/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 21.1 in · 13.9 from 35 in | 51/100 · D |
| Normal heat + freeze calendar | 187 calendar days | 21/100 · F |
| Frost-free season | 139 days/year | 18/100 · F |
| Snowfall burden | 59.8 inches/year | 16/100 · F |
| Annual temperature balance | 40.4°F · 27.1° from 67.5°F | 5/100 · F |
McHenry · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
McHenry is a continental Köppen climate: Dfb
Coldest-month mean 7.6°F and warmest-month mean 69.3°F place this station in continental, no dry season, warm summer climates (Dfb). Class Dfb is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: continental, specifically continental, no dry season, warm summer.
- Köppen code
- Dfb
- Group
- Continental
- Warmest month
- 69.3°F
- Coldest month
- 7.6°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 McHenry sits across the climate record
Three NOAA fields for McHenry's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 94%
- Among 6,861 stations, McHenry sits in the cooler third of annual means.
- Annual precipitation
- Drier than 71%
- McHenry'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 McHenry is large versus 6,861 complete station-years.
How McHenry compares across U.S. station-mapped locations
McHenry's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
44 10th percentile score exceeds 10% 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%). This entry sits in this band.
- 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
McHenry's measured station temperature trend
MethodologyAcross 84 complete annual observations from 1910 to 2025, MC HENRY 3W warmed at a fitted rate of 0.21°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- McHenry primary station fitted change +0.21 °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 | 17°F (-9°C) | -1°F (-18°C) | 8°F (-14°C) | 0.6" | 11.4" | 31.0 | 0.0 |
| February | 21°F (-6°C) | 3°F (-16°C) | 12°F (-11°C) | 0.5" | 9.4" | 27.8 | 0.0 |
| March | 34°F (1°C) | 16°F (-9°C) | 25°F (-4°C) | 0.8" | 8.2" | 28.9 | 0.0 |
| April | 52°F (11°C) | 30°F (-1°C) | 41°F (5°C) | 1.2" | 4.3" | 18.0 | 0.0 |
| May | 67°F (19°C) | 42°F (6°C) | 55°F (13°C) | 2.7" | 0.9" | 4.3 | 0.3 |
| June | 76°F (24°C) | 54°F (12°C) | 65°F (18°C) | 3.5" | 0.0" | 0.0 | 1.1 |
| July | 81°F (27°C) | 58°F (14°C) | 69°F (21°C) | 3.6" | 0.0" | 0.0 | 3.0 |
| August | 80°F (27°C) | 56°F (13°C) | 68°F (20°C) | 2.5" | 0.0" | 0.0 | 2.8 |
| September | 71°F (22°C) | 46°F (8°C) | 59°F (15°C) | 2.1" | 0.0" | 1.5 | 0.9 |
| October | 54°F (12°C) | 33°F (0°C) | 44°F (6°C) | 1.8" | 2.5" | 15.2 | 0.0 |
| November | 36°F (2°C) | 19°F (-7°C) | 28°F (-2°C) | 0.9" | 8.8" | 27.7 | 0.0 |
| December | 22°F (-6°C) | 6°F (-15°C) | 14°F (-10°C) | 0.8" | 14.3" | 30.9 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 82°F around July 27, short of 90°F on every date, while 187 dates carry a normal low at or below freezing, the coldest -2°F near January 17.
The freezing stretch
The normal low stays at or below 32°F into April 21, then returns to freezing around October 18, covering 187 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 June 25, when 34% of years recorded at least a hundredth of an inch. The driest is March 21 at 17%. Summed across the calendar, that is about 86 wet dates a year.
The widest day
September 8 carries the biggest normal gap between afternoon and dawn, 25°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for McHenry.
Where McHenry Stands Nationally
Freezing is routine here by normals standards — the normal low reaches 32°F or colder on about 187 nights a year, more than most ranked stations.
McHenry earns one nationally notable standing (outer quintile) against 6,860 NOAA 1991–2020 normals stations, middle-of-the-pack metrics stay silent here.
Monthly Precipitation
Average monthly rainfall and snowfall
Snow: 11.4"
6.4 days with precipitation
Snow: 9.4"
5.8 days with precipitation
Snow: 8.2"
5.4 days with precipitation
Snow: 4.3"
6.3 days with precipitation
Snow: 0.9"
8.7 days with precipitation
10.1 days with precipitation
9.2 days with precipitation
7.9 days with precipitation
6.9 days with precipitation
Snow: 2.5"
6.8 days with precipitation
Snow: 8.8"
5.5 days with precipitation
Snow: 14.3"
6.9 days with precipitation
McHenry runs a summer-peaked wet season
46% of McHenry'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 3.6", on a wide 61.7°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, June, May, taking 47% of the annual total between them.
- Driest month: February at 0.5".
- Winter share: 9% 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.
How McHenry's precipitation splits across the calendar
About 86 days a year record measurable precipitation here, carrying 21.1" between them, or roughly 0.25 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 McHenry
McHenry averages 59.8 inches of snowfall a year, with December the snowiest month on the normals, spread across roughly 30 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: 59.8 inches of depth.
- Days recording measurable snow: about 30 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 28% 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 28
50% probability date
Last Spring Freeze
May 12
50% probability date
Growing Season
139 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
9,330
Higher = more heating needed
Cooling Degree Days
417
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside ND closest to McHenry 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 (40°F here).
- Bruno, MN 40°F · 0.0°F off
- Covington, MI 40°F · 0.0°F off
- Florence, WI 40°F · 0.0°F off
- Hinckley, MN 40°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (21.1" here), excluding temperature-peer places.
- Alpine, UT 21.1" · 0.0" off
- Idaho City, ID 21.1" · 0.0" off
- Montrose, CO 21.2" · 0.0" off
- Beaver, OK 21.1" · 0.0" off
Snow and freeze rhythm
When cold and snow define McHenry
heating led · moderate · high swing
Winter and seasonal range jointly define this record. McHenry logs 9,330 heating degree days, more than twice its 417 cooling total, while the typical coldest-to-warmest-month gap reaches 61.7°F. The annual mean therefore compresses two materially different seasons.
Only about 139 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. McHenry coldest normal
January
Averaging 8°F (-14°C), this month sits below freezing for the month as a whole, not merely overnight.
-
2. McHenry typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. McHenry snow peak
December
McHenry averages 59.8 inches of snow a year, with December the snowiest month on the normals.
Questions about McHenry's climate
How much snow does McHenry get? ▼
How cold does McHenry get in winter? ▼
How much energy does heating and cooling require in McHenry? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from McHenry's primary station: MC HENRY 3W (USC00325730). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The 2024 Census Gazetteer identifies the exact name-and-state match as an incorporated place (GEOID 3849260). Match rule for McHenry: exact normalized name + state only, no fuzzy expansion, so nearby differently spelled facilities stay unmatched.
On this page every temperature, precipitation, and derived score for McHenry 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.