August
August · July · June
84climate match
United States · 1991–2020
Best time to visit
Mountain.
August leads for comfortable weather in Mountain: typically 25.3°C by day, 11.9°C at night, with 58 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortAugust
Typical high25.3°C
Typical low11.9°C
Rain in August58 mm
August
August · July · June
56climate match
September
September · August · May
87climate match
The weakest month is January, scoring 5 against August’s 84 — days reach only -10.3°C, 34° below the 24°C the score treats as ideal.
Month by month
The whole year,
without the guesswork.
The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.
Jan
5-10.3° / -20.3°
Feb
5-7.5° / -18.3°
Mar
5-0.6° / -10.4°
Apr
219.7° / -2°
May
5218.2° / 4.9°
Jun
7623.2° / 11.4°
Jul
8125.5° / 13.6°
Aug
8425.3° / 11.9°
Sep
6620° / 6.9°
Oct
2811.1° / 0.1°
Nov
51.2° / -8.2°
Dec
5-6.9° / -16°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | -10.3°C | -20.3°C | 9 mm | 2.8 | 8 h 41 | 5 | Strong coverage |
| February | -7.5°C | -18.3°C | 9 mm | 2.1 | 10 h 05 | 5 | Strong coverage |
| March | -0.6°C | -10.4°C | 18 mm | 3.5 | 11 h 44 | 5 | Strong coverage |
| April | 9.7°C | -2°C | 27 mm | 4 | 13 h 37 | 21 | Strong coverage |
| May | 18.2°C | 4.9°C | 75 mm | 8.6 | 15 h 13 | 52 | Strong coverage |
| June | 23.2°C | 11.4°C | 96 mm | 9.6 | 16 h 07 | 76 | Strong coverage |
| July | 25.5°C | 13.6°C | 85 mm | 8.4 | 15 h 46 | 81 | Strong coverage |
| August | 25.3°C | 11.9°C | 58 mm | 6.2 | 14 h 21 | 84 | Strong coverage |
| September | 20°C | 6.9°C | 59 mm | 5.9 | 12 h 31 | 66 | Strong coverage |
| October | 11.1°C | 0.1°C | 42 mm | 5.2 | 10 h 43 | 28 | Strong coverage |
| November | 1.2°C | -8.2°C | 19 mm | 3.4 | 9 h 06 | 5 | Strong coverage |
| December | -6.9°C | -16°C | 13 mm | 3.5 | 8 h 18 | 5 | Strong coverage |
What has changed
Mountain runs -0.4°C
on the 1961–1990 baseline.
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.
Jan
+1.5
Feb
-1.3
Mar
-0.3
Apr
-2.3
May
-1.1
Jun
-0.4
Jul
-1.0
Aug
-1.1
Sep
+0.9
Oct
-1.2
Nov
0.0
Dec
+1.5
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 11.1°C24 Jan 1942 | -40.6°C22 Jan 1936 | 14 mm2 Jan 1941 | 35 mm1941 · driest 0 mm in 1973 | 88 |
| February | 16.1°C25 Feb 1958 | -40.6°C12 Feb 1936 | 22 mm26 Feb 1998 | 38 mm1987 · driest 0 mm in 1993 | 88 |
| March | 25.6°C27 Mar 1946 | -35.0°C1 Mar 1962 | 65 mm28 Mar 2004 | 76 mm2004 · driest 0 mm in 2021 | 89 |
| April | 35.6°C22 Apr 1980 | -23.3°C6 Apr 1979 | 49 mm24 Apr 1953 | 140 mm2022 · driest 0 mm in 1987 | 88 |
| May | 36.7°C12 May 2025 | -12.8°C3 May 1967 | 68 mm15 May 1968 | 192 mm1962 · driest 5 mm in 1951 | 89 |
| June | 40.6°C5 Jun 2021 | -2.2°C2 Jun 1936 | 116 mm11 Jun 2002 | 215 mm2002 · driest 17 mm in 1978 | 90 |
| July | 43.3°C11 Jul 1936 | 1.7°C5 Jul 1983 | 85 mm20 Jul 1976 | 246 mm2016 · driest 4 mm in 1941 | 89 |
| August | 39.4°C11 Aug 1988 | -4.4°C16 Aug 1936 | 84 mm1 Aug 1937 | 215 mm1942 · driest 8 mm in 1961 | 89 |
| September | 39.4°C6 Sep 1978 | -7.2°C28 Sep 1961 | 107 mm2 Sep 1957 | 237 mm1941 · driest 0 mm in 1948 | 89 |
| October | 33.9°C2 Oct 1992 | -18.9°C31 Oct 1991 | 80 mm10 Oct 1949 | 153 mm1949 · driest 3 mm in 1990 | 90 |
| November | 23.9°C1 Nov 1999 | -36.1°C28 Nov 1985 | 65 mm8 Nov 1986 | 125 mm1944 · driest 0 mm in 1999 | 89 |
| December | 17.2°C6 Dec 1939 | -38.3°C31 Dec 1967 | 27 mm31 Dec 2004 | 43 mm1949 · driest 0 mm in 1939 | 89 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 31 | 0 | 5 |
| February | 0 | 0 | 28 | <1 | 4 |
| March | 0 | 0 | 29 | <1 | 4 |
| April | <1 | 0 | 20 | <1 | 2 |
| May | 5 | 1 | 6 | 2 | <1 |
| June | 12 | 2 | 0 | 3 | 0 |
| July | 19 | 4 | 0 | 3 | 0 |
| August | 17 | 4 | 0 | 2 | 0 |
| September | 7 | 1 | 2 | 2 | 0 |
| October | <1 | <1 | 16 | 1 | <1 |
| November | 0 | 0 | 28 | <1 | 3 |
| December | 0 | 0 | 31 | <1 | 6 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 11% | <1% | 6% | -15.5–-5.2°C |
| February | 0% | 10% | <1% | 4% | -11.9–-2.5°C |
| March | <1% | 12% | 1% | 6% | -4.3–4.7°C |
| April | 10% | 16% | 4% | 13% | 6.2–14.3°C |
| May | 39% | 24% | 6% | 28% | 16.4–22.7°C |
| June | 59% | 30% | 9% | 36% | 21.5–26.5°C |
| July | 72% | 26% | 8% | 25% | 24.7–29.4°C |
| August | 74% | 21% | 6% | 19% | 23.9–28.7°C |
| September | 47% | 19% | 6% | 17% | 17.9–23.3°C |
| October | 16% | 15% | 4% | 11% | 9.5–16.0°C |
| November | <1% | 12% | 2% | 6% | -2.4–6.0°C |
| December | 0% | 11% | <1% | 6% | -11.4–-2.3°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
Nearby, measured,
and named.
- Place identity
- GeoNames 5060543
- NOAA station
- USC00321435 · CAVALIER 7NW
- Station distance
- 22.8 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 28 usable years
- Daylight
- Calculated from latitude 48.69°, mid-month, sunrise to sunset including refraction. Not a station measurement.
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.