Guernsey, WY
Climate overview — based on NOAA 1991-2020 normals from GUERNSEY 2NW, WY US.
Year-round temperatures (°F)
Climate summary
Guernsey has an annual average temperature of 48.7°F with about 15.1 inches of precipitation per year. The warmest month is July (average high 88.7°F), and the coldest is January (average low 14.0°F). May is typically the wettest month (2.85 in) and December the driest (0.34 in).
Best time to visit Guernsey
Full guide →Climate change signal
All-time records →172 of 366 (47%) of Guernsey's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 2010s | 352 | |
| 2020s | 14 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | 40.1°F | 14.0°F | 27.1°F | 0.66 in | — | — |
| February | 41.0°F | 15.7°F | 28.4°F | 0.54 in | — | — |
| March | 51.9°F | 24.5°F | 38.2°F | 0.95 in | — | — |
| April | 58.9°F | 32.3°F | 45.6°F | 1.75 in | — | — |
| May | 68.7°F | 42.5°F | 55.6°F | 2.85 in | — | — |
| June | 81.1°F | 52.8°F | 67.0°F | 2.08 in | — | — |
| July | 88.7°F | 59.7°F | 74.2°F | 1.73 in | — | — |
| August | 87.5°F | 57.5°F | 72.5°F | 1.20 in | — | — |
| September | 77.9°F | 47.6°F | 62.8°F | 1.20 in | — | — |
| October | 63.0°F | 34.4°F | 48.7°F | 1.29 in | — | — |
| November | 49.8°F | 22.9°F | 36.4°F | 0.51 in | — | — |
| December | 40.4°F | 15.0°F | 27.7°F | 0.34 in | — | — |
Climate twins of Guernsey
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).