Cody weather in September: Cody, Wyoming: normal highs, lows, rain and records for September
Cody in September has a normal high of 72°F and a normal low of 47°F, a daily mean of 60°F, falling from 78°F on the 1st to 66°F by the 30th. Measurable precipitation falls on 6 days in a normal September, 1.15 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 22°C and low of 8°C, 29 mm of precipitation and 1 cm of snow in September.
- NOAA stationCody
- Station IDUSC00481840
- Location44.50°N 109.11°W
- Elevation5,280 ft (1,609 m)
- Population10,391
- Jan 38° 18°
- Feb 39° 19°
- Mar 49° 27°
- Apr 55° 33°
- May 64° 42°
- Jun 75° 50°
- Jul 84° 57°
- Aug 82° 56°
- Sep 72° 47°
- Oct 58° 36°
- Nov 45° 26°
- Dec 37° 18°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Cody in September?
The normal high is 72°F and the normal low 47°F, for a daily mean of 59.7°F. September is 9.2°F cooler than August and 12.8°F warmer than October. September is the 4th warmest month of the year in Cody and the 4th wettest. Across the month the normal high falls 12°F, from 78°F on September 1 to 66°F on September 30. From one year to the next September's mean temperature typically moves about 2.8°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 57°F and 63°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 21%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 78°F | 52°F | 21% | 11% |
| September 8 | 76°F | 50°F | 21% | 12% |
| September 15 | 73°F | 48°F | 20% | 12% |
| September 22 | 70°F | 45°F | 20% | 12% |
| September 30 | 66°F | 42°F | 20% | 12% |
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 | 78°F | 52°F | 21% | 11% | 13 h 20 min |
| September 2 | 78°F | 51°F | 21% | 11% | 13 h 10 min |
| September 3 | 77°F | 51°F | 21% | 11% | 13 h 10 min |
| September 4 | 77°F | 51°F | 21% | 11% | 13 h 10 min |
| September 5 | 77°F | 50°F | 21% | 12% | 13 h 10 min |
| September 6 | 76°F | 50°F | 21% | 12% | 13 h |
| September 7 | 76°F | 50°F | 21% | 12% | 13 h |
| September 8 | 76°F | 50°F | 21% | 12% | 13 h |
| September 9 | 75°F | 49°F | 21% | 12% | 12 h 50 min |
| September 10 | 75°F | 49°F | 21% | 12% | 12 h 50 min |
| September 11 | 75°F | 49°F | 21% | 12% | 12 h 50 min |
| September 12 | 74°F | 48°F | 21% | 12% | 12 h 40 min |
| September 13 | 74°F | 48°F | 20% | 12% | 12 h 40 min |
| September 14 | 73°F | 48°F | 20% | 12% | 12 h 40 min |
| September 15 | 73°F | 48°F | 20% | 12% | 12 h 40 min |
| September 16 | 72°F | 47°F | 20% | 12% | 12 h 30 min |
| September 17 | 72°F | 47°F | 20% | 12% | 12 h 30 min |
| September 18 | 72°F | 47°F | 20% | 12% | 12 h 30 min |
| September 19 | 71°F | 46°F | 20% | 12% | 12 h 20 min |
| September 20 | 71°F | 46°F | 20% | 12% | 12 h 20 min |
| September 21 | 70°F | 46°F | 20% | 12% | 12 h 20 min |
| September 22 | 70°F | 45°F | 20% | 12% | 12 h 10 min |
| September 23 | 69°F | 45°F | 20% | 12% | 12 h 10 min |
| September 24 | 69°F | 45°F | 20% | 12% | 12 h 10 min |
| September 25 | 68°F | 44°F | 20% | 12% | 12 h 10 min |
| September 26 | 68°F | 44°F | 20% | 12% | 12 h |
| September 27 | 67°F | 43°F | 20% | 12% | 12 h |
| September 28 | 67°F | 43°F | 20% | 12% | 12 h |
| September 29 | 66°F | 43°F | 20% | 12% | 11 h 50 min |
| September 30 | 66°F | 42°F | 20% | 12% | 11 h 50 min |
- Normal high
- 72°FSeptember average
- Normal low
- 47°FSeptember average
- Precipitation
- 1.15 inmonth total
- Days with precipitation
- 60.01 inch or more
- Snowfall
- 0.4 inmonth total
- Days at 90°F or more
- 1
- Nights at 32°F or colder
- 1
- Daylight
- 13 h 20 min to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 20
- Days at 80°F or more
- 9
- Sunshine
- 78%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00481840; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Cody in September?
On a given September day the chance of 0.01 inch or more is 20% on average, highest around September 1 (21%). In all, 1.15 in falls on 6 days of a normal September.
In a normal September in Cody, 1 days reach 90°F, 1 nights fall to freezing and snowfall averages 0.4 inches.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00481840.
What are the records for September in Cody?
The warmest September temperature on this station's record (since 1915) is 100°F, on September 8, 2022; the coldest is 9°F, on September 25, 1926. The wettest September brought 3.51 in (1991); the snowiest, 8.0 inches (1934).
The September mean against the 1991-2020 normal of 59.7°F: 2021 63.6°F (+3.9), 2022 65.6°F (+5.9), 2023 63.0°F (+3.3), 2024 65.9°F (+6.2), 2025 64.3°F (+4.6). 5 of 5 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 63.6°F | +3.9°F | 0.14 in |
| 2022 | 65.6°F | +5.9°F | 1.52 in |
| 2023 | 63.0°F | +3.3°F | 2.02 in |
| 2024 | 65.9°F | +6.2°F | 0.88 in |
| 2025 | 64.3°F | +4.6°F | 1.64 in |
Source: records: ACIS, station USC00481840; recent months: ACIS, station USC00481840. Records and recent months use complete months only.
How does September in Cody compare across Wyoming?
Across the 71 places PlainClimate covers in Wyoming, September normal highs run from 65°F in Sundance to 81°F in Yoder; Cody's is 72°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.