Winnemucca weather in September: Winnemucca, Nevada: normal highs, lows, rain and records for September
Winnemucca in September has a normal high of 83°F and a normal low of 41°F, a daily mean of 62°F, falling from 89°F on the 1st to 77°F by the 30th. Measurable precipitation falls on 3 days in a normal September, 0.39 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 29°C and low of 5°C, 10 mm of precipitation in September.
- NOAA stationWinnemucca Airport
- Station IDUSW00024128
- Location40.90°N 117.81°W
- Elevation4,296 ft (1,309 m)
- Population8,225
- 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.
How warm is Winnemucca in September?
The normal high is 83°F and the normal low 41°F, for a daily mean of 62.1°F. September is 9.5°F cooler than August and 12.7°F warmer than October. September is the 4th warmest month of the year in Winnemucca and the 10th wettest. Across the month the normal high falls 12°F, from 89°F on September 1 to 77°F on September 30. From one year to the next September's mean temperature typically moves about 2.1°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 60°F and 64°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 11%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 89°F | 46°F | 8% | 3% |
| September 8 | 87°F | 44°F | 8% | 3% |
| September 15 | 84°F | 41°F | 10% | 4% |
| September 22 | 81°F | 39°F | 10% | 4% |
| September 30 | 77°F | 36°F | 11% | 5% |
Every day of September: normal high, low and chance of precipitation (warmest afternoon September 1, coldest night September 30)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| September 1 | 89°F | 46°F | 8% | 3% | 13 h 10 min |
| September 2 | 89°F | 45°F | 8% | 3% | 13 h 10 min |
| September 3 | 88°F | 45°F | 8% | 3% | 13 h |
| September 4 | 88°F | 45°F | 8% | 3% | 13 h |
| September 5 | 88°F | 45°F | 8% | 3% | 13 h |
| September 6 | 87°F | 44°F | 8% | 3% | 13 h |
| September 7 | 87°F | 44°F | 8% | 3% | 12 h 50 min |
| September 8 | 87°F | 44°F | 8% | 3% | 12 h 50 min |
| September 9 | 86°F | 43°F | 9% | 3% | 12 h 50 min |
| September 10 | 86°F | 43°F | 9% | 4% | 12 h 50 min |
| September 11 | 85°F | 43°F | 9% | 4% | 12 h 40 min |
| September 12 | 85°F | 42°F | 9% | 4% | 12 h 40 min |
| September 13 | 85°F | 42°F | 9% | 4% | 12 h 40 min |
| September 14 | 84°F | 42°F | 9% | 4% | 12 h 30 min |
| September 15 | 84°F | 41°F | 10% | 4% | 12 h 30 min |
| September 16 | 83°F | 41°F | 10% | 4% | 12 h 30 min |
| September 17 | 83°F | 41°F | 10% | 4% | 12 h 30 min |
| September 18 | 83°F | 40°F | 10% | 4% | 12 h 20 min |
| September 19 | 82°F | 40°F | 10% | 4% | 12 h 20 min |
| September 20 | 82°F | 40°F | 10% | 4% | 12 h 20 min |
| September 21 | 81°F | 39°F | 10% | 4% | 12 h 20 min |
| September 22 | 81°F | 39°F | 10% | 4% | 12 h 10 min |
| September 23 | 80°F | 39°F | 10% | 5% | 12 h 10 min |
| September 24 | 80°F | 38°F | 11% | 5% | 12 h 10 min |
| September 25 | 79°F | 38°F | 11% | 5% | 12 h 10 min |
| September 26 | 79°F | 37°F | 11% | 5% | 12 h |
| September 27 | 78°F | 37°F | 11% | 5% | 12 h |
| September 28 | 78°F | 37°F | 11% | 5% | 12 h |
| September 29 | 77°F | 36°F | 11% | 5% | 11 h 50 min |
| September 30 | 77°F | 36°F | 11% | 5% | 11 h 50 min |
- Normal high
- 83°FSeptember average
- Normal low
- 41°FSeptember average
- Precipitation
- 0.39 inmonth total
- Days with precipitation
- 30.01 inch or more
- Days at 90°F or more
- 7
- Nights at 32°F or colder
- 5
- Daylight
- 13 h 10 min to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 27
- Days at 80°F or more
- 20
- Sunshine
- 91%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00024128; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Winnemucca in September?
On a given September day the chance of 0.01 inch or more is 9% on average, highest around September 30 (11%). In all, 0.39 in falls on 3 days of a normal September.
In a normal September in Winnemucca, 7 days reach 90°F and 5 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00024128.
How humid and windy is Winnemucca in September?
At 3 p.m. the normal temperature is 74°F with 18% relative humidity and a dew point of 28°F; at 6 a.m. it is 38°F with 59% humidity. The wind averages 6.5 mph, most often from the west-northwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 38°F | 25°F | 59% | 5.0 mph | 84% |
| 9 a.m. | 60°F | 30°F | 32% | 6.6 mph | 87% |
| noon | 71°F | 29°F | 21% | 7.7 mph | 83% |
| 3 p.m. | 74°F | 28°F | 18% | 9.4 mph | 86% |
| 6 p.m. | 63°F | 28°F | 26% | 6.2 mph | 87% |
| 9 p.m. | 52°F | 27°F | 39% | 6.9 mph | – |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00024128. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for September in Winnemucca?
The warmest September temperature on Winnemucca's official record (since 1877) is 106°F, on September 6, 2022; the coldest is 12°F, on September 24, 1958. The wettest September brought 2.80 in (1998); the snowiest, 1.1 inches (2019).
The September mean against the 1991-2020 normal of 62.1°F: 2021 62.5°F (+0.4), 2022 66.2°F (+4.1), 2023 61.2°F (−0.9), 2024 63.6°F (+1.5), 2025 64.0°F (+1.9), 2026 61.0°F (−1.1). 4 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 62.5°F | +0.4°F | 0.06 in |
| 2022 | 66.2°F | +4.1°F | 0.45 in |
| 2023 | 61.2°F | −0.9°F | 2.01 in |
| 2024 | 63.6°F | +1.5°F | 1.12 in |
| 2025 | 64.0°F | +1.9°F | 0.25 in |
| 2026 | 61.0°F | −1.1°F | 0.01 in |
Source: records: ACIS, NWS threaded record WMCthr; recent months: ACIS, station USW00024128. Records and recent months use complete months only.
How does September in Winnemucca compare across Nevada?
Across the 55 places PlainClimate covers in Nevada, September normal highs run from 71°F in Incline Village to 102°F in Laughlin; Winnemucca's is 83°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.