Warm-summer humid continental climate
Climate Etna - Wyoming
Annual high51ºF
Annual low29ºF
Precipitation25.29 inch
| Month | HighºF | LowºF | Precipinch | Snowinch |
|---|---|---|---|---|
| Jan | 29 | 11 | 2.47 | 21 |
| Feb | 32 | 13 | 1.87 | 15 |
| Mar | 39 | 20 | 1.91 | 13 |
| Apr | 48 | 27 | 2.22 | 11 |
| May | 59 | 35 | 3.37 | 5 |
| Jun | 68 | 42 | 2.31 | 1 |
| Jul | 78 | 49 | 1.70 | 0 |
| Aug | 77 | 47 | 1.31 | 0 |
| Sep | 67 | 39 | 1.64 | 1 |
| Oct | 53 | 30 | 1.99 | 7 |
| Nov | 37 | 19 | 2.16 | 15 |
| Dec | 28 | 11 | 2.34 | 22 |
- JanHigh 29ºFLow 11ºFPrecip 2.47 inch
- FebHigh 32ºFLow 13ºFPrecip 1.87 inch
- MarHigh 39ºFLow 20ºFPrecip 1.91 inch
- AprHigh 48ºFLow 27ºFPrecip 2.22 inch
- MayHigh 59ºFLow 35ºFPrecip 3.37 inch
- JunHigh 68ºFLow 42ºFPrecip 2.31 inch
- JulHigh 78ºFLow 49ºFPrecip 1.70 inch
- AugHigh 77ºFLow 47ºFPrecip 1.31 inch
- SepHigh 67ºFLow 39ºFPrecip 1.64 inch
- OctHigh 53ºFLow 30ºFPrecip 1.99 inch
- NovHigh 37ºFLow 19ºFPrecip 2.16 inch
- DecHigh 28ºFLow 11ºFPrecip 2.34 inch
Climate summary
What is the average weather in Etna, Wyoming?
Alta experiences a humid continental climate, marked by very cold winters and abundant snowfall. The high elevation keeps temperatures noticeably lower, contributing to mild summers. Precipitation is moderate and spread relatively evenly throughout the year, with winter moisture often arriving as snow.
Etna weather averages
Annual high51ºF
Annual low29ºF
Precipitation25.29 inch
Snowfall111 inch
Daily normals Etna - Wyoming - January
| Day | HighºF | LowºF | Prec/ | Prec/ | Snow/ | Snow/ |
|---|---|---|---|---|---|---|
| Jan 1 | 27.9 | 11.2 | 0.08 | 0.08 | 0.70 | 0.70 |
| Jan 2 | 28.0 | 11.2 | 0.15 | 0.15 | 1.40 | 1.40 |
| Jan 3 | 28.1 | 11.3 | 0.23 | 0.23 | 2.10 | 2.10 |
| Jan 4 | 28.2 | 11.4 | 0.31 | 0.31 | 2.90 | 2.90 |
| Jan 5 | 28.3 | 11.4 | 0.39 | 0.39 | 3.60 | 3.60 |
| Jan 6 | 28.4 | 11.5 | 0.47 | 0.47 | 4.30 | 4.30 |
| Jan 7 | 28.4 | 11.6 | 0.55 | 0.55 | 5.00 | 5.00 |
| Jan 8 | 28.5 | 11.6 | 0.64 | 0.64 | 5.70 | 5.70 |
| Jan 9 | 28.6 | 11.7 | 0.72 | 0.72 | 6.50 | 6.50 |
| Jan 10 | 28.7 | 11.7 | 0.80 | 0.80 | 7.20 | 7.20 |
| Jan 11 | 28.8 | 11.8 | 0.89 | 0.89 | 7.90 | 7.90 |
| Jan 12 | 28.9 | 11.8 | 0.97 | 0.97 | 8.60 | 8.60 |
| Jan 13 | 28.9 | 11.9 | 1.05 | 1.05 | 9.30 | 9.30 |
| Jan 14 | 29.0 | 11.9 | 1.14 | 1.14 | 10.00 | 10.00 |
| Jan 15 | 29.1 | 11.9 | 1.23 | 1.23 | 10.80 | 10.80 |
| Jan 16 | 29.1 | 11.9 | 1.31 | 1.31 | 11.50 | 11.50 |
| Jan 17 | 29.2 | 12.0 | 1.39 | 1.39 | 12.20 | 12.20 |
| Jan 18 | 29.2 | 12.0 | 1.47 | 1.47 | 13.00 | 13.00 |
| Jan 19 | 29.3 | 12.0 | 1.55 | 1.55 | 13.70 | 13.70 |
| Jan 20 | 29.3 | 12.0 | 1.63 | 1.63 | 14.40 | 14.40 |
| Jan 21 | 29.4 | 12.0 | 1.71 | 1.71 | 15.00 | 15.00 |
| Jan 22 | 29.4 | 12.0 | 1.79 | 1.79 | 15.70 | 15.70 |
| Jan 23 | 29.4 | 12.0 | 1.87 | 1.87 | 16.40 | 16.40 |
| Jan 24 | 29.5 | 12.0 | 1.95 | 1.95 | 17.10 | 17.10 |
| Jan 25 | 29.5 | 12.0 | 2.03 | 2.03 | 17.80 | 17.80 |
| Jan 26 | 29.5 | 12.0 | 2.11 | 2.11 | 18.50 | 18.50 |
| Jan 27 | 29.6 | 12.0 | 2.18 | 2.18 | 19.10 | 19.10 |
| Jan 28 | 29.6 | 12.0 | 2.26 | 2.26 | 19.80 | 19.80 |
| Jan 29 | 29.7 | 12.0 | 2.34 | 2.34 | 20.40 | 20.40 |
| Jan 30 | 29.7 | 12.0 | 2.41 | 2.41 | 21.10 | 21.10 |
| Jan 31 | 29.8 | 12.0 | 2.49 | 2.49 | 21.70 | 21.70 |
Precipitation and snow add up through the month (/mo) and the year (/yr)
Weather history Etna - September 2026
| Day | HighºF | LowºF | Precip.inch |
|---|---|---|---|
| Sep 1 | 70.0 | 50.0 | 0.22 |
| Sep 2 | 72.0 | 53.1 | T |
| Sep 3 | 66.9 | 44.1 | 0.00 |
| Sep 4 | 70.0 | 42.1 | 0.00 |
| Sep 5 | 77.0 | 39.9 | 0.00 |
| Sep 6 | 75.9 | 44.1 | 0.00 |
| Sep 7 | 60.1 | 44.1 | 0.26 |
| Sep 8 | 64.0 | 32.0 | 0.00 |
| Sep 9 | 66.9 | 33.1 | 0.00 |
| Sep 10 | 70.0 | 37.9 | 0.00 |
| Sep 11 | 70.0 | 52.0 | 0.00 |
| Sep 12 | 73.0 | 37.0 | 0.00 |
| Sep 13 | 70.0 | 44.1 | 0.00 |
| Sep 14 | 57.0 | 39.9 | 0.20 |
| Sep 15 | 66.0 | 30.0 | 0.00 |
| Sep 16 | 73.0 | 37.0 | 0.00 |
| Sep 17 | 64.0 | 46.9 | 0.13 |
| Sep 18 | 57.9 | 43.0 | 0.41 |
| Sep 19 | 55.0 | 39.9 | 0.23 |
| Sep 20 | 54.0 | 37.0 | T |
| Sep 21 | 63.0 | 33.1 | 0.00 |
| Sep 22 | 61.0 | 37.0 | 0.10 |
| Sep 23 | 64.0 | 41.0 | 0.12 |
| Sep 24 | 68.0 | 35.1 | 0.00 |
| Sep 25 | 70.0 | 37.9 | 0.00 |
| Sep 26 | 64.9 | 37.0 | 0.00 |
| Sep 27 | 66.9 | 39.0 | 0.00 |
| Sep 28 | 55.9 | 41.0 | 0.19 |
| Sep 29 | 61.0 | 35.1 | 0.00 |
| Sep 30 | 63.0 | 33.1 | 0.00 |
The data for September 2026 is incomplete: some days or values are missing.
- –No data
- –Not yet observed or received
- TTrace, too small to measure
Observed extremes
- Highest max temperature77.0ºF · Sep 5
- Lowest max temperature54.0ºF · Sep 20
- Highest min temperature53.1ºF · Sep 2
- Lowest min temperature30.0ºF · Sep 15
Geo Etna - Wyoming
Location
- Country
- United States
- State
- Wyoming
- County
- Lincoln
- City
- Etna
- Zip Code
- 83118
- Elevation
- 5830 ft
- Longitude
- -110.98
- Latitude
- 43.77
- ICAO
- –
- IATA
- –