Winnemucca, Nevada climate: Normal weather by month, frost dates and records
Winnemucca's normal year runs from 19°F December nights to 96°F July afternoons, with 8.3 inches of precipitation and 22 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 10.3°C, December lows of −7°C, July highs of 35°C, 210 mm of precipitation a year.
- NOAA stationWinnemucca Airport
- Station IDUSW00024128
- Location40.90°N 117.81°W
- Elevation4,296 ft (1,309 m)
- Population8,225
On October 23, the normal high in Winnemucca is 65°F and the normal low 28°F, and the chance of measurable rain or snow is 15%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Winnemucca.
- Jan 44° 21°
- Feb 49° 24°
- Mar 58° 28°
- Apr 64° 32°
- May 74° 39°
- Jun 85° 46°
- Jul 96° 54°
- Aug 93° 50°
- Sep 83° 41°
- Oct 69° 30°
- Nov 54° 23°
- Dec 43° 19°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Winnemucca each month?
July is the warmest month, with normal highs of 96°F; December the coldest, with normal lows of 19°F. The most precipitation falls in May (1.13 in), the least in August (0.12 in).
Each month has its own page with the day-by-day normals, the month's records and its recent years:
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 44°F | 21°F | 32.2°F | 0.96 | 4.4 | 9 | <1 | 28 | 9 h 30 min |
| February | 49°F | 24°F | 36.6°F | 0.71 | 3.7 | 8 | <1 | 24 | 10 h 40 min |
| March | 58°F | 28°F | 42.6°F | 0.87 | 3.0 | 8 | <1 | 24 | 11 h 50 min |
| April | 64°F | 32°F | 47.6°F | 1.00 | 1.8 | 8 | <1 | 18 | 13 h 20 min |
| May | 74°F | 39°F | 56.4°F | 1.13 | 0.1 | 8 | 1 | 7 | 14 h 30 min |
| June | 85°F | 46°F | 65.4°F | 0.50 | 0.0 | 4 | 10 | 1 | 15 h 10 min |
| July | 96°F | 54°F | 74.5°F | 0.16 | 0.0 | 2 | 25 | <1 | 14 h 50 min |
| August | 93°F | 50°F | 71.6°F | 0.12 | 0.0 | 2 | 22 | <1 | 13 h 50 min |
| September | 83°F | 41°F | 62.1°F | 0.39 | 0.0 | 3 | 7 | 5 | 12 h 30 min |
| October | 69°F | 30°F | 49.4°F | 0.66 | 0.5 | 4 | <1 | 20 | 11 h 10 min |
| November | 54°F | 23°F | 38.6°F | 0.76 | 2.6 | 6 | <1 | 25 | 10 h |
| December | 43°F | 19°F | 30.7°F | 1.02 | 5.9 | 8 | <1 | 28 | 9 h 20 min |
| Year (annual) | 68°F | 34°F | 50.6°F | 8.28 | 22.0 | 70 | 66 | 182 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 7°C | −6°C | 0.1°C | 24 mm | 11 cm |
| February | 10°C | −5°C | 2.6°C | 18 mm | 9 cm |
| March | 14°C | −2°C | 5.9°C | 22 mm | 8 cm |
| April | 18°C | 0°C | 8.7°C | 25 mm | 5 cm |
| May | 23°C | 4°C | 13.6°C | 29 mm | 0 cm |
| June | 29°C | 8°C | 18.6°C | 13 mm | 0 cm |
| July | 35°C | 12°C | 23.6°C | 4 mm | 0 cm |
| August | 34°C | 10°C | 22.0°C | 3 mm | 0 cm |
| September | 29°C | 5°C | 16.7°C | 10 mm | 0 cm |
| October | 20°C | −1°C | 9.7°C | 17 mm | 1 cm |
| November | 12°C | −5°C | 3.7°C | 19 mm | 7 cm |
| December | 6°C | −7°C | −0.7°C | 26 mm | 15 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00024128; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Winnemucca?
Normal highs sit between 65°F and 85°F in May, June, September and October. Of those, September has the fewest days with rain (3).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USW00024128.
When is the last frost in Winnemucca?
In Winnemucca, the last spring frost (32°F) comes after May 31 in half of years and after June 19 in one year in ten; the first autumn frost comes before September 17 in half of years and before September 3 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- May 311 year in 10 after June 19; 9 in 10 after May 10
- First autumn frost, half of years before
- September 171 year in 10 before September 3; 9 in 10 before October 1
NOAA puts the median frost-free season at 108 days, and the season without a hard freeze (28°F) at 137 days.
A hard freeze (28°F) comes after May 13 in half of springs and before September 29 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Winnemucca in zone 6b in ZIP code 89446, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Winnemucca's NOAA station is in zone 6a: the coldest night of a typical year reaches −6°F (30 complete years); the map interpolates between stations and terrain, so the station and the ZIP area can differ by half a zone.
Frost dates for every NOAA station in Nevada · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USW00024128; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Winnemucca?
In a normal year in Winnemucca, 66 days a year reach 90°F (9 of them 100°F or more), 182 nights fall to 32°F or colder and 70 days bring measurable precipitation.
- Days at 90°F or more
- 66a normal year
- Days at 100°F or more
- 9a normal year
- Nights at 32°F or colder
- 182a normal year
- Days that stay below freezing
- 11high of 32°F or less
- Days with 0.01 inch of precipitation
- 70a normal year
- Days with 1 inch of snow or more
- 8a normal year
The highest temperature in Winnemucca's official record (kept by the National Weather Service since 1877) is 109°F, on July 11, 2002; the lowest is −37°F, on December 22, 1990.
The wettest calendar year on that record is 1998, with 16.10 in; the snowiest season is 1889–90, with 75.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USW00024128; records: ACIS (NOAA Regional Climate Centers), NWS threaded record WMCthr. Records use complete months only; a month missing more than three days is left out.
How humid and windy is Winnemucca, and how clear are its skies?
The summer (June-August) dew point averages 33°F. The muggiest month is May, with an average dew point of 34°F; the driest air comes in December (20°F). April is the windiest month (8.3 mph on average), and July has the most clear or nearly clear hours (91%).
| Month | Dew point | Humidity | Afternoon humidity | Wind | Clear or few clouds | Overcast |
|---|---|---|---|---|---|---|
| January | 24°F | 70% | 48% | 6.8 mph | 61% | 27% |
| February | 23°F | 60% | 37% | 8.0 mph | 57% | 26% |
| March | 24°F | 48% | 28% | 8.2 mph | 59% | 22% |
| April | 28°F | 43% | 24% | 8.3 mph | 64% | 19% |
| May | 34°F | 39% | 21% | 7.9 mph | 74% | 12% |
| June | 34°F | 26% | 14% | 7.9 mph | 91% | 3% |
| July | 34°F | 24% | 12% | 7.3 mph | 91% | 2% |
| August | 31°F | 27% | 13% | 6.9 mph | 90% | 2% |
| September | 27°F | 36% | 18% | 6.5 mph | 85% | 6% |
| October | 24°F | 50% | 28% | 6.3 mph | 72% | 17% |
| November | 22°F | 66% | 45% | 6.7 mph | 64% | 24% |
| December | 20°F | 72% | 54% | 6.9 mph | 58% | 30% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00024128. Monthly averages of all hours; afternoon humidity at 3 p.m. local standard time; sky as the share of hours NOAA's observations rate clear or few clouds (a dash where NOAA publishes no sky value).
How sunny is Winnemucca?
Over a year 84% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Winnemucca, 5.0 kWh per square metre a day. August is the sunniest month (93%) and December the cloudiest (66%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 71% | 2.2 |
| February | 74% | 3.2 |
| March | 76% | 4.5 |
| April | 78% | 5.8 |
| May | 82% | 7.0 |
| June | 90% | 8.1 |
| July | 92% | 7.9 |
| August | 93% | 7.1 |
| September | 91% | 5.7 |
| October | 86% | 4.1 |
| November | 77% | 2.6 |
| December | 66% | 1.8 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Winnemucca need?
A normal year in Winnemucca brings 5,891 heating degree days, 10% more than the median U.S. place (5,373), and 684 cooling degree days, 25% fewer than the median (908). Seven months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 2,660 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,015 | 0 |
| February | 794 | 0 |
| March | 695 | 0 |
| April | 524 | 0 |
| May | 283 | 16 |
| June | 89 | 101 |
| July | 6 | 300 |
| August | 13 | 217 |
| September | 134 | 48 |
| October | 484 | 1 |
| November | 792 | 0 |
| December | 1,063 | 0 |
| Year (annual) | 5,891 | 684 |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00024128. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Has Winnemucca been warmer than normal lately?
2025 averaged 52.1°F, 1.5°F above the 1991-2020 normal of 50.6°F. 4 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 52.0°F | +1.4°F | 10.55 | 43.4 |
| 2022 | 50.7°F | +0.1°F | 7.05 | 29.8 |
| 2023 | 50.3°F | −0.4°F | 8.69 | 23.6 |
| 2024 | 52.1°F | +1.5°F | 11.14 | 31.2 |
| 2025 | 52.1°F | +1.5°F | 6.77 | 9.6 |
Over 71 complete years from 1950 to 2025, the station's annual mean temperature rose at a fitted 2.6°F per century (+0.15°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USW00024128; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Winnemucca's climate compare?
Winnemucca is warmer than 20 of the other 54 places with their own NOAA record in Nevada, and wetter than 24. Across the 7,247 U.S. stations with normals, its annual mean of 50.6°F is warmer than 43%.
In the Köppen classification computed from these normals, Winnemucca is BSk: cold semi-arid steppe. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Winnemucca share this climate record?
Grass Valley has no NOAA station with 1991-2020 normals of its own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Grass Valley, NV1,216 people · 8 mi S
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
What do Winnemucca's other NOAA stations record?
One more NOAA station keeps 1991-2020 normals in or near Winnemucca. This page uses Winnemucca Airport; the other differs by site and elevation:
| Station | From this station | Elevation | Year | Jan low | Jul high | Precip. | Snow | Last frost |
|---|---|---|---|---|---|---|---|---|
| Winnemucca (3 mi SSW) USC00269168 | 4 mi NE | 4,355 ft | 49.9°F | 19°F | 92°F | 8.5 | 22 | May 23 |
Source: NOAA NCEI 1991-2020 normals for each station. Last frost: the median last spring date of 32°F.
Questions about Winnemucca's climate
What is the coldest month in Winnemucca?
December, with a normal high of 43°F and a normal low of 19°F. The warmest is July (96°F by day, 54°F at night).
Does it snow in Winnemucca?
Yes: 22 inches in a normal year, falling on 20 days with 0.1 inch or more, the most in December (5.9 inches).
What is the rainiest month in Winnemucca?
May, with 1.13 in of precipitation in a normal year; the driest is August with 0.12 in.
What plant hardiness zone is Winnemucca in?
The USDA's 2023 map puts Winnemucca in zone 6b in ZIP code 89446, the nearest ZIP area. By the same method at Winnemucca's NOAA station, the coldest night of a typical year reaches −6°F (30 years, 1991-2020): zone 6a.
How late can frost come in Winnemucca?
In half of years the last 32°F night comes after May 31; in one year in ten it comes after June 19. Waiting until June 19 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Winnemucca in OctoberThis month day by day, its records and recent years
- Nevada climateThe statewide normals and every place in the state
- Golconda, NV17 miles from this station, 50.6°F a year
- Imlay, NV25 miles from this station, 50.3°F a year
- Rye Patch Dam, NV40 miles from this station, 51.1°F a year
- Paradise Valley, NV43 miles from this station, 48.9°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made