Casper weather in October: Casper, Wyoming: normal highs, lows, rain and records for October
Casper in October has a normal high of 60°F and a normal low of 31°F, a daily mean of 45°F, falling from 67°F on the 1st to 53°F by the 31st. Measurable precipitation falls on 8 days in a normal October, 1.19 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 15°C and low of −1°C, 30 mm of precipitation and 18 cm of snow in October.
- NOAA stationCasper-Natrona County Airport
- Station IDUSW00024089
- Location42.90°N 106.46°W
- Elevation5,338 ft (1,627 m)
- Population58,823
- Jan 35° 15°
- Feb 38° 15°
- Mar 49° 23°
- Apr 56° 28°
- May 67° 37°
- Jun 80° 45°
- Jul 89° 53°
- Aug 87° 51°
- Sep 76° 42°
- Oct 60° 31°
- Nov 46° 22°
- Dec 35° 15°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Casper in October?
The normal high is 60°F and the normal low 31°F, for a daily mean of 45.3°F. October is 13.6°F cooler than September and 11.3°F warmer than November. October is the 6th warmest month of the year in Casper and the 4th wettest. Across the month the normal high falls 14°F, from 67°F on October 1 to 53°F on October 31. From one year to the next October's mean temperature typically moves about 3.7°F either way (NOAA's standard deviation), so roughly two Octobers in three average between 42°F and 49°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 25%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| October 1 | 67°F | 36°F | 25% | 11% |
| October 8 | 63°F | 34°F | 25% | 11% |
| October 15 | 60°F | 31°F | 23% | 10% |
| October 22 | 57°F | 29°F | 22% | 9% |
| October 31 | 53°F | 26°F | 21% | 8% |
Every day of October: normal high, low and chance of precipitation (warmest afternoon October 1, coldest night October 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| October 1 | 67°F | 36°F | 25% | 11% | 11 h 50 min |
| October 2 | 67°F | 36°F | 25% | 11% | 11 h 40 min |
| October 3 | 66°F | 36°F | 25% | 11% | 11 h 40 min |
| October 4 | 66°F | 35°F | 25% | 11% | 11 h 40 min |
| October 5 | 65°F | 35°F | 25% | 11% | 11 h 40 min |
| October 6 | 64°F | 34°F | 25% | 11% | 11 h 30 min |
| October 7 | 64°F | 34°F | 25% | 11% | 11 h 30 min |
| October 8 | 63°F | 34°F | 25% | 11% | 11 h 30 min |
| October 9 | 63°F | 33°F | 25% | 11% | 11 h 20 min |
| October 10 | 62°F | 33°F | 24% | 10% | 11 h 20 min |
| October 11 | 62°F | 32°F | 24% | 10% | 11 h 20 min |
| October 12 | 61°F | 32°F | 24% | 10% | 11 h 20 min |
| October 13 | 61°F | 32°F | 24% | 10% | 11 h 10 min |
| October 14 | 60°F | 31°F | 23% | 10% | 11 h 10 min |
| October 15 | 60°F | 31°F | 23% | 10% | 11 h 10 min |
| October 16 | 59°F | 31°F | 23% | 10% | 11 h |
| October 17 | 59°F | 30°F | 23% | 10% | 11 h |
| October 18 | 59°F | 30°F | 23% | 10% | 11 h |
| October 19 | 58°F | 30°F | 23% | 9% | 11 h |
| October 20 | 58°F | 29°F | 22% | 9% | 10 h 50 min |
| October 21 | 57°F | 29°F | 22% | 9% | 10 h 50 min |
| October 22 | 57°F | 29°F | 22% | 9% | 10 h 50 min |
| October 23 | 56°F | 29°F | 22% | 9% | 10 h 50 min |
| October 24 | 56°F | 28°F | 22% | 9% | 10 h 40 min |
| October 25 | 56°F | 28°F | 22% | 9% | 10 h 40 min |
| October 26 | 55°F | 28°F | 22% | 9% | 10 h 40 min |
| October 27 | 55°F | 27°F | 22% | 9% | 10 h 30 min |
| October 28 | 54°F | 27°F | 22% | 9% | 10 h 30 min |
| October 29 | 54°F | 27°F | 21% | 9% | 10 h 30 min |
| October 30 | 54°F | 27°F | 21% | 9% | 10 h 30 min |
| October 31 | 53°F | 26°F | 21% | 8% | 10 h 20 min |
- Normal high
- 60°FOctober average
- Normal low
- 31°FOctober average
- Precipitation
- 1.19 inmonth total
- Days with precipitation
- 80.01 inch or more
- Snowfall
- 7.0 inmonth total
- Nights at 32°F or colder
- 17
- Daylight
- 11 h 50 min to 10 h 20 minOctober 1 to October 31
- Days at 70°F or more
- 8
- Days at 80°F or more
- 2
- Sunshine
- 77%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00024089; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Casper in October?
On a given October day the chance of 0.01 inch or more is 23% on average, highest around October 1 (25%). In all, 1.19 in falls on 8 days of a normal October.
In a normal October in Casper, 17 nights fall to freezing, 1 days stay below freezing all day and snowfall averages 7.0 inches.
Snow falls on 4 days in a normal October, and an inch or more covers the ground on 2 days.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00024089.
How humid and windy is Casper in October?
At 3 p.m. the normal temperature is 49°F with 35% relative humidity and a dew point of 23°F; at 6 a.m. it is 33°F with 64% humidity. The wind averages 12.3 mph, most often from the west-southwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 33°F | 22°F | 64% | 11.5 mph | 67% |
| 9 a.m. | 40°F | 24°F | 53% | 14.3 mph | 67% |
| noon | 47°F | 24°F | 40% | 16.4 mph | 66% |
| 3 p.m. | 49°F | 23°F | 35% | 15.3 mph | 67% |
| 6 p.m. | 40°F | 23°F | 52% | 10.0 mph | 71% |
| 9 p.m. | 36°F | 23°F | 59% | 10.2 mph | 70% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00024089. 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 October in Casper?
The warmest October temperature on Casper's official record (since 1939) is 87°F, on October 1, 1992; the coldest is −9°F, on October 30, 2019. The wettest October brought 4.62 in (1998); the snowiest, 22.4 inches (1949).
The October mean against the 1991-2020 normal of 45.3°F: 2021 47.3°F (+2.0), 2022 46.8°F (+1.5), 2023 46.1°F (+0.8), 2024 50.0°F (+4.7), 2025 47.3°F (+2.0). 5 of 5 ran warmer than normal.
| October | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 47.3°F | +2.0°F | 2.69 in |
| 2022 | 46.8°F | +1.5°F | 0.27 in |
| 2023 | 46.1°F | +0.8°F | 1.88 in |
| 2024 | 50.0°F | +4.7°F | 1.51 in |
| 2025 | 47.3°F | +2.0°F | 1.56 in |
Source: records: ACIS, NWS threaded record CPRthr; recent months: ACIS, station USW00024089. Records and recent months use complete months only.
How does October in Casper compare across Wyoming?
Across the 71 places PlainClimate covers in Wyoming, October normal highs run from 50°F in Sundance to 67°F in Yoder; Casper's is 60°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.