Cody, Wyoming climate: Normal weather by month, frost dates and records
Cody's normal year runs from 18°F December nights to 84°F July afternoons, with 11.5 inches of precipitation and 45 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 8.2°C, December lows of −8°C, July highs of 29°C, 292 mm of precipitation a year.
- NOAA stationCody
- Station IDUSC00481840
- Location44.50°N 109.11°W
- Elevation5,280 ft (1,609 m)
- Population10,391
On October 23, the normal high in Cody is 55°F and the normal low 33°F, and the chance of measurable rain or snow is 16%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Cody.
- 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.
What is the weather like in Cody each month?
July is the warmest month, with normal highs of 84°F; December the coldest, with normal lows of 18°F. The most precipitation falls in May (2.18 in), the least in January (0.37 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 | 38°F | 18°F | 27.5°F | 0.37 | 7.3 | 3 | <1 | 27 | 9 h 10 min |
| February | 39°F | 19°F | 28.6°F | 0.46 | 7.5 | 4 | <1 | 25 | 10 h 30 min |
| March | 49°F | 27°F | 37.7°F | 0.55 | 5.8 | 5 | <1 | 22 | 11 h 50 min |
| April | 55°F | 33°F | 44.2°F | 1.35 | 5.9 | 8 | <1 | 15 | 13 h 30 min |
| May | 64°F | 42°F | 53.1°F | 2.18 | 0.8 | 10 | <1 | 4 | 14 h 50 min |
| June | 75°F | 50°F | 62.4°F | 1.62 | 0.0 | 9 | 2 | <1 | 15 h 30 min |
| July | 84°F | 57°F | 70.6°F | 0.89 | 0.0 | 7 | 9 | <1 | 15 h 10 min |
| August | 82°F | 56°F | 68.9°F | 0.90 | 0.0 | 7 | 5 | <1 | 14 h 10 min |
| September | 72°F | 47°F | 59.7°F | 1.15 | 0.4 | 6 | 1 | 1 | 12 h 40 min |
| October | 58°F | 36°F | 46.9°F | 0.99 | 3.4 | 6 | <1 | 11 | 11 h |
| November | 45°F | 26°F | 35.2°F | 0.59 | 6.4 | 4 | <1 | 22 | 9 h 40 min |
| December | 37°F | 18°F | 27.3°F | 0.46 | 7.5 | 4 | <1 | 27 | 8 h 50 min |
| Year (annual) | 58°F | 36°F | 46.8°F | 11.51 | 45.0 | 72 | 16 | 153 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 3°C | −8°C | −2.5°C | 9 mm | 19 cm |
| February | 4°C | −7°C | −1.9°C | 12 mm | 19 cm |
| March | 9°C | −3°C | 3.2°C | 14 mm | 15 cm |
| April | 13°C | 1°C | 6.8°C | 34 mm | 15 cm |
| May | 18°C | 5°C | 11.7°C | 55 mm | 2 cm |
| June | 24°C | 10°C | 16.9°C | 41 mm | 0 cm |
| July | 29°C | 14°C | 21.4°C | 23 mm | 0 cm |
| August | 28°C | 13°C | 20.5°C | 23 mm | 0 cm |
| September | 22°C | 8°C | 15.4°C | 29 mm | 1 cm |
| October | 14°C | 2°C | 8.3°C | 25 mm | 9 cm |
| November | 7°C | −4°C | 1.8°C | 15 mm | 16 cm |
| December | 3°C | −8°C | −2.6°C | 12 mm | 19 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00481840; 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 Cody?
Normal highs sit between 65°F and 85°F in June, July, August and September. Of those, September has the fewest days with rain (6).
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 USC00481840.
When is the last frost in Cody?
In Cody, the last spring frost (32°F) comes after May 12 in half of years and after May 27 in one year in ten; the first autumn frost comes before October 1 in half of years and before September 17 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 121 year in 10 after May 27; 9 in 10 after April 27
- First autumn frost, half of years before
- October 11 year in 10 before September 17; 9 in 10 before October 14
NOAA puts the median frost-free season at 140 days, and the season without a hard freeze (28°F) at 162 days.
A hard freeze (28°F) comes after April 30 in half of springs and before October 10 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Cody in zone 5a in ZIP code 82440, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Cody's NOAA station is in zone 5a: the coldest night of a typical year reaches −16°F (27 complete years).
Frost dates for every NOAA station in Wyoming · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00481840; 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 Cody?
In a normal year in Cody, 16 days a year reach 90°F, 153 nights fall to 32°F or colder and 72 days bring measurable precipitation.
- Days at 90°F or more
- 16a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 153a normal year
- Days that stay below freezing
- 33high of 32°F or less
- Days with 0.01 inch of precipitation
- 72a normal year
- Days with 1 inch of snow or more
- 16a normal year
The highest temperature in this station's record (since 1915) is 105°F, on July 14, 1925; the lowest is −46°F, on February 8, 1936.
The wettest calendar year on that record is 2023, with 17.67 in; the snowiest season is 2013–14, with 81.8 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00481840; records: ACIS (NOAA Regional Climate Centers), station USC00481840. Records use complete months only; a month missing more than three days is left out.
How sunny is Cody?
Over a year 74% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Cody, 4.3 kWh per square metre a day. July is the sunniest month (82%) and May the cloudiest (67%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 76% | 2.0 |
| February | 76% | 3.0 |
| March | 74% | 4.2 |
| April | 71% | 5.2 |
| May | 67% | 5.7 |
| June | 75% | 6.7 |
| July | 82% | 7.0 |
| August | 80% | 5.9 |
| September | 78% | 4.6 |
| October | 69% | 3.0 |
| November | 68% | 2.0 |
| December | 69% | 1.6 |
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 Cody need?
A normal year in Cody brings 7,049 heating degree days, 31% more than the median U.S. place (5,373), and 464 cooling degree days, 49% fewer than the median (908). Eight months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 2,240 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,163 | 0 |
| February | 1,019 | 0 |
| March | 845 | 0 |
| April | 626 | 0 |
| May | 375 | 8 |
| June | 132 | 54 |
| July | 24 | 199 |
| August | 38 | 159 |
| September | 199 | 42 |
| October | 562 | 3 |
| November | 896 | 0 |
| December | 1,170 | 0 |
| Year (annual) | 7,049 | 464 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00481840. 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 Cody been warmer than normal lately?
2025 averaged 48.3°F, 1.5°F above the 1991-2020 normal of 46.8°F. 4 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 48.1°F | +1.3°F | 8.48 | 39.6 |
| 2022 | 46.3°F | −0.5°F | 15.94 | 50.5 |
| 2023 | 47.2°F | +0.4°F | 17.67 | 40.9 |
| 2024 | 49.1°F | +2.3°F | 11.27 | 31.6 |
| 2025 | 48.3°F | +1.5°F | 14.52 | 47.5 |
Over 89 complete years from 1915 to 2025, the station's annual mean temperature rose at a fitted 2.4°F per century (+0.13°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00481840; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Cody's climate compare?
Cody is warmer than 56 of the other 70 places with their own NOAA record in Wyoming, and wetter than 28. Across the 7,247 U.S. stations with normals, its annual mean of 46.8°F is warmer than 27%.
In the Köppen classification computed from these normals, Cody 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.
What do Cody's other NOAA stations record?
2 more NOAA stations keep 1991-2020 normals in or near Cody. This page uses Cody; the others differ by site and elevation:
| Station | From this station | Elevation | Year | Jan low | Jul high | Precip. | Snow | Last frost |
|---|---|---|---|---|---|---|---|---|
| Cody (12 mi SE) USC00481850 | 12 mi SE | 5,248 ft | 44.0°F | 12°F | 85°F | 10.2 | 24 | May 24 |
| Cody (21 mi SW) USC00481855 | 18 mi SW | 5,840 ft | 45.0°F | 18°F | 84°F | 12.1 | 45 | May 29 |
Source: NOAA NCEI 1991-2020 normals for each station. Last frost: the median last spring date of 32°F.
Questions about Cody's climate
What is the coldest month in Cody?
December, with a normal high of 37°F and a normal low of 18°F. The warmest is July (84°F by day, 57°F at night).
Does it snow in Cody?
Yes: 45 inches in a normal year, falling on 19 days with 0.1 inch or more, the most in February (7.5 inches).
What is the rainiest month in Cody?
May, with 2.18 in of precipitation in a normal year; the driest is January with 0.37 in.
What plant hardiness zone is Cody in?
The USDA's 2023 map puts Cody in zone 5a in ZIP code 82440, the nearest ZIP area. By the same method at Cody's NOAA station, the coldest night of a typical year reaches −16°F (27 years, 1991-2020): zone 5a.
How late can frost come in Cody?
In half of years the last 32°F night comes after May 12; in one year in ten it comes after May 27. Waiting until May 27 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Cody in OctoberThis month day by day, its records and recent years
- Wyoming climateThe statewide normals and every place in the state
- Buffalo Bill Dam, WY3 miles from this station, 46.0°F a year
- Wapiti (1 mi WSW), WY16 miles from this station, 45.0°F a year
- Heart Mountain, WY16 miles from this station, 45.6°F a year
- Powell, WY25 miles from this station, 43.2°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made