August
August · June · July
78climate match
United States · 1991–2020
Best time to visit
Coleraine.
August leads for comfortable weather in Coleraine: typically 25.7°C by day, 12.2°C at night, with 86 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortAugust
Typical high25.7°C
Typical low12.2°C
Rain in August86 mm
July
July · August · June
53climate match
September
September · May · August
80climate match
The weakest month is January, scoring 5 against August’s 78 — days reach only -7.1°C, 31° 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
5-7.1° / -18.6°
Feb
5-3.3° / -16.4°
Mar
54.1° / -8.8°
Apr
2311.7° / -1.7°
May
5419.2° / 5°
Jun
7324.3° / 10.8°
Jul
7226.8° / 13.5°
Aug
7825.7° / 12.2°
Sep
6420.4° / 7.5°
Oct
2511.9° / 1°
Nov
52.6° / -6.3°
Dec
5-4.7° / -14.1°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | -7.1°C | -18.6°C | 24 mm | 5.9 | 8 h 52 | 5 | Strong coverage |
| February | -3.3°C | -16.4°C | 22 mm | 4.9 | 10 h 11 | 5 | Strong coverage |
| March | 4.1°C | -8.8°C | 34 mm | 5.7 | 11 h 45 | 5 | Strong coverage |
| April | 11.7°C | -1.7°C | 53 mm | 7.2 | 13 h 32 | 23 | Strong coverage |
| May | 19.2°C | 5°C | 82 mm | 9.5 | 15 h 04 | 54 | Strong coverage |
| June | 24.3°C | 10.8°C | 119 mm | 10.8 | 15 h 55 | 73 | Strong coverage |
| July | 26.8°C | 13.5°C | 105 mm | 9.8 | 15 h 34 | 72 | Strong coverage |
| August | 25.7°C | 12.2°C | 86 mm | 8 | 14 h 15 | 78 | Strong coverage |
| September | 20.4°C | 7.5°C | 77 mm | 8.7 | 12 h 30 | 64 | Strong coverage |
| October | 11.9°C | 1°C | 71 mm | 8.7 | 10 h 47 | 25 | Strong coverage |
| November | 2.6°C | -6.3°C | 40 mm | 6.5 | 9 h 15 | 5 | Strong coverage |
| December | -4.7°C | -14.1°C | 31 mm | 6.7 | 8 h 29 | 5 | Strong coverage |
What has changed
Coleraine runs +0.5°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
+1.3
Feb
-0.4
Mar
+1.3
Apr
-1.7
May
-0.1
Jun
+0.5
Jul
+0.4
Aug
+0.5
Sep
+2.0
Oct
-0.4
Nov
+0.5
Dec
+1.5
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 11.7°C31 Jan 2024 | -46.1°C26 Jan 1927 | 32 mm4 Jan 1997 | 81 mm1975 · driest 2 mm in 1963 | 109 |
| February | 16.1°C22 Feb 1961 | -42.8°C21 Feb 1939 | 37 mm1 Feb 1922 | 95 mm1922 · driest 1 mm in 1968 | 110 |
| March | 26.7°C28 Mar 1946 | -39.4°C1 Mar 1962 | 57 mm23 Mar 2009 | 108 mm2009 · driest 4 mm in 1960 | 111 |
| April | 33.9°C21 Apr 1980 | -23.3°C2 Apr 1920 | 49 mm3 Apr 1940 | 142 mm2008 · driest 1 mm in 1926 | 111 |
| May | 38.3°C31 May 1934 | -11.7°C14 May 1918 | 80 mm1 May 1955 | 176 mm2012 · driest 3 mm in 1917 | 111 |
| June | 37.8°C26 Jun 1921 | -4.4°C3 Jun 1928 | 121 mm19 Jun 2012 | 271 mm1994 · driest 13 mm in 1961 | 112 |
| July | 40.0°C13 Jul 1936 | 0.6°C22 Jul 1925 | 106 mm2 Jul 1978 | 240 mm1978 · driest 7 mm in 1929 | 111 |
| August | 37.8°C19 Aug 1976 | -2.8°C28 Aug 1934 | 111 mm3 Aug 1983 | 255 mm1988 · driest 4 mm in 1933 | 111 |
| September | 37.2°C8 Sep 1931 | -9.4°C28 Sep 1942 | 100 mm2 Sep 1937 | 191 mm1965 · driest 11 mm in 1918 | 110 |
| October | 31.7°C1 Oct 2023 | -19.4°C28 Oct 1942 | 113 mm9 Oct 1973 | 173 mm1973 · driest 4 mm in 1952 | 111 |
| November | 23.3°C4 Nov 2020 | -31.7°C28 Nov 1940 | 58 mm18 Nov 2016 | 138 mm1938 · driest 1 mm in 1999 | 110 |
| December | 15.0°C1 Dec 1962 | -42.8°C31 Dec 1946 | 32 mm24 Dec 2023 | 87 mm2021 · driest 3 mm in 1924 | 110 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 31 | <1 | 12 |
| February | 0 | 0 | 28 | <1 | 9 |
| March | 0 | 0 | 28 | <1 | 6 |
| April | <1 | 0 | 21 | 2 | 4 |
| May | 6 | 1 | 5 | 3 | <1 |
| June | 15 | 3 | 0 | 4 | 0 |
| July | 23 | 7 | 0 | 3 | 0 |
| August | 19 | 5 | 0 | 3 | 0 |
| September | 7 | 1 | 2 | 3 | 0 |
| October | 1 | <1 | 15 | 2 | 2 |
| November | 0 | 0 | 27 | 1 | 7 |
| December | 0 | 0 | 31 | <1 | 12 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 18% | <1% | 14% | -12.1–-3.6°C |
| February | 0% | 16% | <1% | 11% | -7.7–0.1°C |
| March | <1% | 18% | 2% | 16% | -0.4–7.0°C |
| April | 11% | 23% | 5% | 25% | 8.3–15.2°C |
| May | 38% | 29% | 8% | 37% | 16.4–22.1°C |
| June | 57% | 34% | 11% | 44% | 22.1–26.6°C |
| July | 70% | 29% | 10% | 31% | 24.8–29.0°C |
| August | 69% | 27% | 9% | 30% | 23.8–28.0°C |
| September | 41% | 27% | 8% | 30% | 17.9–22.8°C |
| October | 13% | 23% | 6% | 24% | 9.8–15.5°C |
| November | <1% | 20% | 4% | 18% | -1.3–6.1°C |
| December | 0% | 20% | 1% | 17% | -9.3–-1.6°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 5021769
- NOAA station
- USC00213303 · GRAND RAPIDS FORESTRY LAB
- Station distance
- 7.3 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 28 usable years
- Daylight
- Calculated from latitude 47.29°, 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.