Grand Lake, CO
Climate overview — based on NOAA 1991-2020 normals from GRAND LAKE 1 NW, CO US.
Year-round temperatures (°F)
Climate summary
Grand Lake has an annual average temperature of 36.9°F with about 18.6 inches of precipitation per year and 154.9 inches of snow. The warmest month is July (average high 75.9°F), and the coldest is January (average low 4.5°F). August is typically the wettest month (2.09 in) and March the driest (1.23 in). Snow typically falls from January through December.
Best time to visit Grand Lake
Full guide →Climate change signal
All-time records →38 of 366 (10.4%) of Grand Lake'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.
| 1900s | 0 | |
| 1910s | 0 | |
| 1920s | 0 | |
| 1930s | 6 | |
| 1940s | 39 | |
| 1950s | 25 | |
| 1960s | 24 | |
| 1970s | 28 | |
| 1980s | 53 | |
| 1990s | 67 | |
| 2000s | 72 | |
| 2010s | 22 | |
| 2020s | 30 |
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 | 30.2°F | 4.5°F | 17.4°F | 1.65 in | 30.6 in | 15 |
| February | 34.3°F | 6.4°F | 20.3°F | 1.50 in | 25.1 in | 13 |
| March | 42.2°F | 13.7°F | 28.0°F | 1.23 in | 17.6 in | 12 |
| April | 49.1°F | 20.5°F | 34.8°F | 1.55 in | 17.1 in | 11 |
| May | 59.2°F | 27.7°F | 43.4°F | 1.59 in | 5.3 in | 12 |
| June | 70.5°F | 34.2°F | 52.3°F | 1.36 in | 0.4 in | 11 |
| July | 75.9°F | 39.8°F | 57.8°F | 1.98 in | — | 14 |
| August | 73.3°F | 38.4°F | 55.8°F | 2.09 in | — | 15 |
| September | 67.6°F | 31.8°F | 49.7°F | 1.59 in | 0.4 in | 12 |
| October | 54.9°F | 23.1°F | 39.0°F | 1.27 in | 7.4 in | 10 |
| November | 40.1°F | 13.2°F | 26.7°F | 1.29 in | 22.5 in | 11 |
| December | 30.0°F | 5.1°F | 17.5°F | 1.50 in | 28.5 in | 14 |
Climate twins of Grand Lake
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).