August
August · July · June
Canada · 1991–2020
August leads for comfortable weather in Moncton: typically 24.9°C by day, 13.5°C at night, with 81 mm of rain. Based on measured 1991–2020 NOAA station history.
August · July · June
July · August · June
September · June · August
The weakest month is January, scoring 5 against August’s 83 — days reach only -2.7°C, 27° below the 24°C the score treats as ideal.
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 | Sea | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|---|
| January | -2.7°C | -12.2°C | 98 mm | 10.9 | -0.6°C | 9 h 00 | 5 | Good coverage |
| February | -1.7°C | -11.9°C | 84 mm | 9.6 | -0.8°C | 10 h 16 | 5 | Good coverage |
| March | 3.1°C | -6.7°C | 106 mm | 11.2 | -0.7°C | 11 h 45 | 5 | Good coverage |
| April | 9.5°C | -0.4°C | 88 mm | 10.9 | 0.8°C | 13 h 28 | 10 | Good coverage |
| May | 16.6°C | 5.2°C | 97 mm | 11.2 | 5.7°C | 14 h 56 | 42 | Good coverage |
| June | 22.2°C | 10.6°C | 96 mm | 11.7 | 11.8°C | 15 h 44 | 70 | Good coverage |
| July | 25.5°C | 14.2°C | 89 mm | 10.1 | 16.8°C | 15 h 25 | 80 | Good coverage |
| August | 24.9°C | 13.5°C | 81 mm | 8.4 | 18.3°C | 14 h 09 | 83 | Good coverage |
| September | 20.4°C | 9.4°C | 100 mm | 8.7 | 16.2°C | 12 h 29 | 64 | Good coverage |
| October | 13.2°C | 3.6°C | 118 mm | 10.8 | 12.3°C | 10 h 50 | 25 | Good coverage |
| November | 7°C | -0.9°C | 96 mm | 11.7 | 7.0°C | 9 h 22 | 5 | Good coverage |
| December | 0.4°C | -7.3°C | 107 mm | 12.1 | 1.9°C | 8 h 39 | 5 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 17.2°C8 Jan 1930 | -36.7°C15 Jan 1957 | 53 mm8 Jan 1979 | 303 mm1956 · driest 12 mm in 1943 | 112 |
| February | 18.0°C20 Feb 1994 | -37.8°C5 Feb 1948 | 76 mm24 Feb 1882 | 166 mm1992 · driest 6 mm in 1923 | 112 |
| March | 21.1°C29 Mar 1945 | -31.7°C5 Mar 1938 | 63 mm30 Mar 2003 | 208 mm1994 · driest 15 mm in 2011 | 110 |
| April | 29.0°C28 Apr 2009 | -17.8°C4 Apr 1969 | 113 mm1 Apr 1962 | 195 mm1962 · driest 23 mm in 1965 | 113 |
| May | 34.5°C22 May 1992 | -7.2°C3 May 1945 | 72 mm12 May 1967 | 219 mm1990 · driest 11 mm in 1911 | 112 |
| June | 34.4°C29 Jun 1944 | -3.9°C3 Jun 1914 | 92 mm29 Jun 1928 | 198 mm1993 · driest 19 mm in 1999 | 111 |
| July | 36.1°C30 Jul 1949 | 0.0°C16 Jul 1946 | 85 mm5 Jul 1973 | 211 mm1912 · driest 18 mm in 1906 | 112 |
| August | 36.7°C12 Aug 1944 | -1.1°C30 Aug 1947 | 110 mm10 Aug 1909 | 201 mm1909 · driest 12 mm in 1975 | 111 |
| September | 35.0°C1 Sep 2010 | -6.1°C29 Sep 1947 | 86 mm22 Sep 1999 | 239 mm1999 · driest 15 mm in 1950 | 113 |
| October | 28.3°C13 Oct 1930 | -9.4°C23 Oct 1930 | 97 mm1 Oct 1923 | 281 mm2005 · driest 11 mm in 1947 | 113 |
| November | 23.0°C5 Nov 1982 | -21.1°C30 Nov 1946 | 66 mm9 Nov 1917 | 221 mm2010 · driest 20 mm in 1908 | 112 |
| December | 18.3°C11 Dec 1966 | -32.8°C20 Dec 1971 | 57 mm4 Dec 1967 | 214 mm1990 · driest 13 mm in 2011 | 114 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 30 | 4 | 11 |
| February | 0 | 0 | 27 | 3 | 9 |
| March | 0 | 0 | 28 | 4 | 8 |
| April | <1 | 0 | 18 | 3 | 5 |
| May | 3 | <1 | 4 | 3 | <1 |
| June | 10 | 2 | <1 | 3 | 0 |
| July | 18 | 4 | 0 | 3 | 0 |
| August | 16 | 3 | 0 | 3 | 0 |
| September | 5 | <1 | <1 | 4 | 0 |
| October | <1 | 0 | 9 | 4 | <1 |
| November | 0 | 0 | 18 | 3 | 3 |
| December | 0 | 0 | 27 | 4 | 9 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 33% | 11% | 41% | -6.1–0.2°C |
| February | 0% | 32% | 10% | 38% | -5.0–0.5°C |
| March | <1% | 32% | 10% | 40% | 0.4–4.9°C |
| April | 3% | 33% | 10% | 40% | 6.6–10.7°C |
| May | 22% | 32% | 8% | 41% | 14.0–18.5°C |
| June | 48% | 33% | 9% | 39% | 19.9–23.2°C |
| July | 67% | 29% | 9% | 33% | 23.4–26.8°C |
| August | 67% | 26% | 9% | 27% | 22.3–26.0°C |
| September | 36% | 28% | 9% | 32% | 18.0–21.3°C |
| October | 8% | 30% | 10% | 38% | 11.4–15.1°C |
| November | <1% | 35% | 11% | 45% | 3.8–8.8°C |
| December | 0% | 34% | 11% | 45% | -4.2–2.4°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