July
July · August · June
United States · 1991–2020
July leads for comfortable weather in Silverthorne: typically 23.9°C by day, 3.9°C at night, with 48 mm of rain. Based on measured 1991–2020 NOAA station history.
July · August · June
July · August · June
June · September · August
The weakest month is January, scoring 5 against July’s 72 — days reach only -0.5°C, 24° below the 24°C the score treats as ideal, and nights drop to -16.4°C.
Month by month
The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | -0.5°C | -16.4°C | 24 mm | 7.1 | 9 h 39 | 5 | Strong coverage |
| February | 0.8°C | -15.2°C | 25 mm | 7.3 | 10 h 38 | 5 | Strong coverage |
| March | 4.8°C | -11.3°C | 29 mm | 7.7 | 11 h 49 | 5 | Strong coverage |
| April | 8.7°C | -7.3°C | 36 mm | 8.2 | 13 h 11 | 5 | Strong coverage |
| May | 14.2°C | -2.9°C | 34 mm | 6.9 | 14 h 20 | 32 | Strong coverage |
| June | 20.6°C | 0.8°C | 29 mm | 5.9 | 14 h 57 | 61 | Strong coverage |
| July | 23.9°C | 3.9°C | 48 mm | 9.1 | 14 h 43 | 72 | Strong coverage |
| August | 22.5°C | 3.2°C | 48 mm | 9.6 | 13 h 43 | 66 | Strong coverage |
| September | 19°C | -0.8°C | 36 mm | 7.4 | 12 h 24 | 51 | Strong coverage |
| October | 12.3°C | -5.7°C | 24 mm | 5.7 | 11 h 05 | 22 | Strong coverage |
| November | 5°C | -10.9°C | 22 mm | 6.2 | 9 h 56 | 5 | Strong coverage |
| December | -0.2°C | -15.6°C | 22 mm | 6.5 | 9 h 23 | 5 | Strong coverage |
What has changed
Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 16.1°C12 Jan 1953 | -42.2°C19 Jan 1940 | 21 mm18 Jan 1912 | 79 mm1996 · driest 2 mm in 1931 | 115 |
| February | 15.6°C13 Feb 1954 | -42.8°C1 Feb 1951 | 27 mm3 Feb 1936 | 140 mm1936 · driest 3 mm in 1911 | 114 |
| March | 21.7°C22 Mar 2026 | -38.9°C12 Mar 1932 | 47 mm15 Mar 1938 | 98 mm1943 · driest 3 mm in 1913 | 116 |
| April | 24.4°C19 Apr 1946 | -31.7°C1 Apr 1924 | 51 mm21 Apr 1926 | 153 mm1926 · driest 9 mm in 1925 | 115 |
| May | 26.7°C31 May 2002 | -22.2°C6 May 1917 | 48 mm14 May 1928 | 105 mm1917 · driest 5 mm in 1974 | 116 |
| June | 30.6°C21 Jun 1944 | -11.7°C13 Jun 1947 | 37 mm12 Jun 1947 | 79 mm1947 · driest 0 mm in 1980 | 117 |
| July | 31.7°C12 Jul 1939 | -5.6°C7 Jul 1938 | 45 mm19 Jul 2011 | 143 mm1912 · driest 8 mm in 1979 | 116 |
| August | 30.6°C11 Aug 1938 | -6.7°C23 Aug 1928 | 34 mm1 Aug 2023 | 113 mm1936 · driest 3 mm in 1932 | 115 |
| September | 28.9°C4 Sep 1960 | -15.6°C21 Sep 1924 | 51 mm7 Sep 1930 | 147 mm1930 · driest 0 mm in 1944 | 115 |
| October | 25.0°C1 Oct 1944 | -27.2°C28 Oct 1919 | 42 mm15 Oct 1916 | 127 mm1924 · driest 1 mm in 1952 | 114 |
| November | 18.3°C1 Nov 1953 | -34.4°C28 Nov 1915 | 24 mm18 Nov 1930 | 72 mm1950 · driest 1 mm in 1923 | 115 |
| December | 16.1°C11 Dec 1939 | -43.3°C24 Dec 1924 | 31 mm3 Dec 1950 | 123 mm1951 · driest 2 mm in 1911 | 115 |
| Month | Days 25°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|
| January | 0 | 31 | <1 | 10 |
| February | 0 | 28 | <1 | 9 |
| March | 0 | 31 | <1 | 9 |
| April | 0 | 30 | <1 | 9 |
| May | <1 | 27 | <1 | 3 |
| June | 4 | 13 | <1 | <1 |
| July | 13 | 1 | 1 | 0 |
| August | 7 | 3 | 1 | 0 |
| September | 2 | 19 | <1 | <1 |
| October | 0 | 29 | <1 | 4 |
| November | 0 | 30 | <1 | 8 |
| December | 0 | 31 | <1 | 9 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 23% | 1% | 24% | -3.0–1.9°C |
| February | 0% | 24% | 2% | 25% | -1.6–3.5°C |
| March | <1% | 27% | 2% | 29% | 1.3–6.6°C |
| April | <1% | 26% | 3% | 28% | 6.3–11.3°C |
| May | 14% | 22% | 3% | 22% | 12.3–16.9°C |
| June | 58% | 19% | 2% | 20% | 18.3–22.8°C |
| July | 69% | 29% | 4% | 37% | 22.0–25.2°C |
| August | 65% | 30% | 4% | 35% | 20.9–24.0°C |
| September | 45% | 21% | 3% | 22% | 17.2–21.4°C |
| October | 8% | 17% | 2% | 13% | 10.2–15.6°C |
| November | 0% | 20% | 1% | 19% | 2.3–8.0°C |
| December | 0% | 21% | 1% | 21% | -2.6–3.1°C |
A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.
The evidence behind this page