Gillette in Fall
In fall (September, October and November), Gillette sees average daytime highs around 58°F and overnight lows near 36°F, with 4.1 in of precipitation over about 19 wet days across the season. It is the 2nd-warmest season and the 3rd-wettest season.
Over the season highs ease from about 79°F in early September to 39°F by late November. The sky is clear or mostly clear about 45% of the time across fall, and the air most often feels dry.
Fall is Gillette's 2nd-best season to visit on our travel score. For the whole year in context, see Gillette's year-round climate.
- Avg daytime high
- 58°F
- 2nd-warmest season
- Avg overnight low
- 36°F
- Precipitation
- 4.1 in
- 19 wet days
- Avg wind
- 11 mph
- Travel score
- 4.2
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Gillette in Fall
Over the season highs ease from about 79°F in early September to 39°F by late November.
A typical fall day in Gillette reaches about 58°F and drops to 36°F overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Gillette
Once humidity and wind are folded in, fall brings about 0 days that feel above 90°F and 55 that feel at or below 32°F.
The story in fall is cold — wind chill drags the overnight "feels like" below the raw low.
Gillette weather by month
How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 34° / 16° | 0.6 | 5.2 | 5.5 | 9.1 | 0.0 |
| Feb | 37° / 18° | 0.8 | 5.8 | 5.7 | 10.2 | 0.0 |
| Mar | 47° / 26° | 1.4 | 7.8 | 5.8 | 11.6 | 1.5 |
| Apr | 54° / 33° | 2.4 | 10.8 | 5.4 | 13.2 | 3.2 |
| May | 64° / 42° | 3.1 | 11.5 | 1.2 | 14.5 | 5.4 |
| Jun | 75° / 52° | 2.3 | 10.2 | 0.1 | 15.3 | 6.8 |
| Jul | 85° / 59° | 1.4 | 7.9 | 0 | 15 | 5.7 |
| Aug | 84° / 58° | 1.2 | 5.8 | 0 | 13.8 | 6.5 |
| Sep | 72° / 48° | 1.4 | 6 | 0.5 | 12.3 | 7.4 |
| Oct | 56° / 36° | 1.9 | 7.8 | 3.1 | 10.8 | 4.3 |
| Nov | 44° / 25° | 0.8 | 5 | 4.8 | 9.4 | 0.9 |
| Dec | 35° / 18° | 0.7 | 5.1 | 5.1 | 8.7 | 0.0 |
Cloud cover in Fall
The sky is clear or mostly clear about 45% of the time across fall.
Chance of precipitation in Fall
Gillette gets around 4.1 in of rain and snow over 19 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 11 mph across fall.
Sunrise & sunset in Fall
Daylight runs from about 13 h 06 min in early September to 8 h 54 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 3.6 kWh/m².
Is fall a good time to visit Gillette?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a reasonable time to visit Gillette for sightseeing.
What to pack for Gillette in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Gillette sees daytime highs around 58°F and nights near 36°F. Pack a warm layer and a heavy coat. Worth having: light clothes and sun protection. About 19 days see rain.
UV index in Gillette in Fall
Clear-sky midday UV across fall averages around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Gillette peaks around June 18 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 4 | 5 | 7 | 9 | 8 | 7 | 6 | 4 | 2 | 1 |
| Level | Low | Moderate | Moderate | High | High | Very high | Very high | High | High | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Moderate |
| Mar | 4 | Moderate |
| Apr | 5 | High |
| May | 7 | High |
| Jun | 9 | Very high |
| Jul | 8 | Very high |
| Aug | 7 | High |
| Sep | 6 | High |
| Oct | 4 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Air quality in Gillette in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.
Air quality in Gillette is worst in August — around 20 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (December, 8 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 10 | 9 | 12 | 12 | 13 | 13 | 15 | 20 | 20 | 14 | 11 | 8 |
| Level | Good | Good | Moderate | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 10 | Good |
| Feb | 9 | Good |
| Mar | 12 | Moderate |
| Apr | 12 | Good |
| May | 13 | Moderate |
| Jun | 13 | Moderate |
| Jul | 15 | Moderate |
| Aug | 20 | Moderate |
| Sep | 20 | Moderate |
| Oct | 14 | Moderate |
| Nov | 11 | Good |
| Dec | 8 | Good |
Where is Gillette?
Gillette sits at 44.3°N, 105.5°W, 4,554 ft above sea level, in United States. The nearest listed city is Sheridan, 80 mi away.
Topography around Gillette
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Gillette.
Within 2 miles, the terrain around Gillette has only modest variations in elevation — a maximum elevation change of 348 ft around an average of 4,564 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,014 ft; within 50 miles, large variations in elevation — a maximum elevation change of 2,707 ft.
The land around Gillette is covered by grassland (50%) and artificial surfaces (35%) within 2 miles, grassland (91%) within 10 miles, and grassland (94%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Gillette (44.2911°, -105.5022°, elevation 4,554 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.