June
June · August · July
78climate match
United States · 1991–2020
Best time to visit
Cooper Lake.
June leads for comfortable weather in Cooper Lake: typically 23.1°C by day, 5.9°C at night, with 35 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortJune
Typical high23.1°C
Typical low5.9°C
Rain in June35 mm
July
July · August · June
58climate match
June
June · September · August
80climate match
The weakest month is January, scoring 5 against June’s 78 — days reach only 1.3°C, 23° below the 24°C the score treats as ideal, and nights drop to -12.6°C.
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
51.3° / -12.6°
Feb
52.8° / -11.3°
Mar
57.8° / -7.2°
Apr
1911° / -4.2°
May
4617° / 1.2°
Jun
7823.1° / 5.9°
Jul
7427.5° / 8.8°
Aug
7626.4° / 7.2°
Sep
6821.7° / 2.5°
Oct
3414.1° / -3°
Nov
56.3° / -8.2°
Dec
51.1° / -13.2°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 1.3°C | -12.6°C | 7 mm | 2.5 | 9 h 28 | 5 | Strong coverage |
| February | 2.8°C | -11.3°C | 9 mm | 3 | 10 h 32 | 5 | Strong coverage |
| March | 7.8°C | -7.2°C | 15 mm | 4.3 | 11 h 48 | 5 | Strong coverage |
| April | 11°C | -4.2°C | 29 mm | 6.8 | 13 h 16 | 19 | Strong coverage |
| May | 17°C | 1.2°C | 44 mm | 8.2 | 14 h 30 | 46 | Strong coverage |
| June | 23.1°C | 5.9°C | 35 mm | 6 | 15 h 11 | 78 | Strong coverage |
| July | 27.5°C | 8.8°C | 36 mm | 6.6 | 14 h 55 | 74 | Strong coverage |
| August | 26.4°C | 7.2°C | 27 mm | 5.6 | 13 h 51 | 76 | Strong coverage |
| September | 21.7°C | 2.5°C | 27 mm | 5.1 | 12 h 25 | 68 | Strong coverage |
| October | 14.1°C | -3°C | 24 mm | 4.5 | 11 h 01 | 34 | Strong coverage |
| November | 6.3°C | -8.2°C | 11 mm | 3.1 | 9 h 47 | 5 | Strong coverage |
| December | 1.1°C | -13.2°C | 9 mm | 2.5 | 9 h 10 | 5 | Strong coverage |
What has changed
Cooper Lake runs +1.3°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
+0.7
Feb
+0.6
Mar
+2.8
Apr
+1.2
May
+0.3
Jun
+1.9
Jul
+1.1
Aug
+1.1
Sep
+1.9
Oct
+0.8
Nov
+2.1
Dec
+0.9
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 16.7°C23 Jan 1981 | -41.7°C1 Jan 1979 | 23 mm28 Jan 1983 | 41 mm1983 · driest 0 mm in 1980 | 56 |
| February | 20.0°C21 Feb 1982 | -40.0°C6 Feb 1989 | 12 mm2 Feb 1989 | 35 mm1989 · driest 0 mm in 1999 | 57 |
| March | 22.2°C23 Mar 2012 | -32.8°C2 Mar 2002 | 25 mm11 Mar 1977 | 45 mm2003 · driest 0 mm in 2012 | 53 |
| April | 25.6°C30 Apr 1992 | -27.8°C2 Apr 1975 | 43 mm21 Apr 1983 | 87 mm1983 · driest 5 mm in 1974 | 52 |
| May | 31.1°C30 May 2002 | -13.9°C3 May 2008 | 49 mm17 May 2000 | 99 mm1995 · driest 4 mm in 1966 | 57 |
| June | 34.4°C14 Jun 2021 | -6.7°C14 Jun 1976 | 45 mm9 Jun 1986 | 115 mm2023 · driest 2 mm in 1971 | 57 |
| July | 36.1°C9 Jul 1976 | -1.1°C7 Jul 1994 | 35 mm1 Jul 1981 | 87 mm2014 · driest 3 mm in 1988 | 58 |
| August | 36.1°C3 Aug 2001 | -3.3°C20 Aug 2016 | 28 mm1 Aug 1994 | 82 mm1984 · driest 1 mm in 2020 | 58 |
| September | 33.3°C1 Sep 1995 | -15.0°C27 Sep 1996 | 44 mm4 Sep 2004 | 120 mm2004 · driest 1 mm in 1987 | 57 |
| October | 29.4°C3 Oct 2005 | -31.1°C26 Oct 2020 | 35 mm28 Oct 1998 | 68 mm2015 · driest 2 mm in 1988 | 55 |
| November | 22.2°C15 Nov 1999 | -33.3°C24 Nov 1993 | 16 mm2 Nov 1987 | 47 mm1983 · driest 2 mm in 2007 | 53 |
| December | 17.2°C10 Dec 1990 | -40.0°C6 Dec 1972 | 11 mm8 Dec 1997 | 26 mm1972 · driest 0 mm in 1979 | 55 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 30 | 0 |
| February | 0 | 0 | 27 | 0 |
| March | 0 | 0 | 28 | <1 |
| April | <1 | 0 | 25 | <1 |
| May | 2 | <1 | 12 | 1 |
| June | 12 | 2 | 2 | <1 |
| July | 25 | 8 | <1 | <1 |
| August | 22 | 5 | <1 | <1 |
| September | 9 | <1 | 8 | <1 |
| October | <1 | 0 | 22 | <1 |
| November | 0 | 0 | 26 | <1 |
| December | 0 | 0 | 29 | 0 |
The best month has moved. On the 1961–1990 numbers the strongest month here was August (scoring 80); on 2011–2025 it is June (85). Both are scored the same way, from the same station — only the climate underneath changed.
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 8% | <1% | 3% | -2.1–4.0°C |
| February | <1% | 10% | <1% | 5% | -0.5–5.2°C |
| March | 1% | 13% | <1% | 7% | 2.1–10.6°C |
| April | 7% | 20% | 2% | 17% | 6.8–12.7°C |
| May | 31% | 23% | 3% | 24% | 13.3–19.0°C |
| June | 67% | 19% | 2% | 17% | 20.1–26.1°C |
| July | 77% | 22% | 3% | 22% | 24.9–29.0°C |
| August | 78% | 20% | 2% | 16% | 24.0–27.6°C |
| September | 64% | 16% | 2% | 11% | 18.5–23.9°C |
| October | 20% | 14% | 2% | 9% | 11.4–16.5°C |
| November | <1% | 12% | <1% | 5% | 3.6–10.2°C |
| December | 0% | 8% | <1% | 3% | -1.7–4.1°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
Nearby, measured,
and named.
- Place identity
- GeoNames 5821843
- NOAA station
- USC00485435 · LARAMIE 2NW
- Station distance
- 35.2 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 26 usable years
- Daylight
- Calculated from latitude 41.63°, 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.