May
May · June · September
86climate match
United States · 1991–2020
Best time to visit
Outlook.
May leads for comfortable weather in Outlook: typically 23.8°C by day, 7.8°C at night, with 19 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortMay
Typical high23.8°C
Typical low7.8°C
Rain in May19 mm
July
July · June · August
69climate match
October
October · April · May
85climate match
The weakest month is January, scoring 5 against May’s 86 — days reach only 4.6°C, 19° 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
54.6° / -3.6°
Feb
199.2° / -2.4°
Mar
4314.6° / 0.6°
Apr
6118.8° / 3.4°
May
8623.8° / 7.8°
Jun
8127.5° / 11.1°
Jul
7032.6° / 13.9°
Aug
7031.9° / 12.7°
Sep
7727.3° / 8.6°
Oct
6219.2° / 3.2°
Nov
2510.5° / -1.1°
Dec
54.3° / -3.5°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 4.6°C | -3.6°C | 22 mm | 5.3 | 8 h 58 | 5 | Good coverage |
| February | 9.2°C | -2.4°C | 15 mm | 4 | 10 h 15 | 19 | Good coverage |
| March | 14.6°C | 0.6°C | 12 mm | 3.6 | 11 h 45 | 43 | Good coverage |
| April | 18.8°C | 3.4°C | 16 mm | 3.6 | 13 h 29 | 61 | Good coverage |
| May | 23.8°C | 7.8°C | 19 mm | 3.9 | 14 h 57 | 86 | Good coverage |
| June | 27.5°C | 11.1°C | 17 mm | 2.8 | 15 h 46 | 81 | Good coverage |
| July | 32.6°C | 13.9°C | 4 mm | 1.2 | 15 h 27 | 70 | Good coverage |
| August | 31.9°C | 12.7°C | 6 mm | 1.4 | 14 h 10 | 70 | Good coverage |
| September | 27.3°C | 8.6°C | 7 mm | 1.7 | 12 h 29 | 77 | Good coverage |
| October | 19.2°C | 3.2°C | 17 mm | 3.9 | 10 h 49 | 62 | Good coverage |
| November | 10.5°C | -1.1°C | 21 mm | 4.6 | 9 h 21 | 25 | Good coverage |
| December | 4.3°C | -3.5°C | 23 mm | 5.4 | 8 h 37 | 5 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 21.1°C1 Jan 1918 | -32.2°C21 Jan 1930 | 31 mm7 Jan 1948 | 73 mm1970 · driest 2 mm in 1984 | 116 |
| February | 22.2°C25 Feb 1986 | -28.3°C3 Feb 1950 | 14 mm12 Feb 1902 | 67 mm1940 · driest 0 mm in 1988 | 115 |
| March | 27.8°C29 Mar 1923 | -13.9°C4 Mar 1896 | 17 mm15 Mar 1987 | 54 mm1983 · driest 0 mm in 1942 | 115 |
| April | 35.6°C29 Apr 1926 | -9.4°C15 Apr 1901 | 25 mm14 Apr 2003 | 44 mm2003 · driest 0 mm in 1909 | 115 |
| May | 40.0°C31 May 1986 | -4.4°C2 May 1899 | 41 mm21 May 1972 | 61 mm1972 · driest 0 mm in 1931 | 117 |
| June | 41.7°C24 Jun 1992 | 0.0°C2 Jun 1908 | 46 mm8 Jun 1947 | 63 mm1938 · driest 0 mm in 1919 | 118 |
| July | 44.4°C27 Jul 1939 | 3.9°C3 Jul 1921 | 16 mm6 Jul 1923 | 26 mm1966 · driest 0 mm in 1970 | 117 |
| August | 42.2°C10 Aug 1898 | 2.2°C26 Aug 1908 | 22 mm30 Aug 1977 | 38 mm2004 · driest 0 mm in 1913 | 116 |
| September | 39.4°C2 Sep 1987 | -7.8°C25 Sep 1926 | 36 mm16 Sep 1986 | 67 mm1986 · driest 0 mm in 1991 | 117 |
| October | 31.7°C2 Oct 1991 | -11.1°C31 Oct 2002 | 27 mm29 Oct 1982 | 66 mm1950 · driest 0 mm in 1929 | 119 |
| November | 25.0°C12 Nov 1999 | -20.6°C23 Nov 1985 | 27 mm20 Nov 1921 | 81 mm1973 · driest 0 mm in 1990 | 116 |
| December | 20.6°C13 Dec 1924 | -26.1°C15 Dec 1919 | 22 mm25 Dec 1933 | 77 mm1964 · driest 0 mm in 1992 | 116 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 26 | <1 | 2 |
| February | 0 | 0 | 21 | <1 | <1 |
| March | <1 | 0 | 14 | 0 | <1 |
| April | 3 | <1 | 6 | <1 | 0 |
| May | 12 | 4 | <1 | <1 | 0 |
| June | 22 | 9 | 0 | <1 | 0 |
| July | 30 | 23 | 0 | 0 | 0 |
| August | 30 | 22 | 0 | <1 | 0 |
| September | 22 | 9 | <1 | <1 | 0 |
| October | 4 | <1 | 7 | <1 | 0 |
| November | <1 | 0 | 19 | <1 | <1 |
| December | 0 | 0 | 26 | <1 | 3 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | <1% | 18% | 1% | 16% | -0.9–7.9°C |
| February | <1% | 15% | <1% | 11% | 5.3–11.8°C |
| March | 11% | 10% | <1% | 6% | 12.0–16.9°C |
| April | 40% | 10% | <1% | 5% | 16.9–22.0°C |
| May | 74% | 11% | <1% | 6% | 21.2–26.4°C |
| June | 90% | 9% | <1% | 5% | 25.4–30.0°C |
| July | 96% | 4% | <1% | <1% | 29.6–34.6°C |
| August | 96% | 5% | <1% | 2% | 29.2–33.5°C |
| September | 87% | 7% | <1% | 3% | 23.4–29.2°C |
| October | 45% | 11% | <1% | 8% | 17.2–21.7°C |
| November | 2% | 18% | 1% | 18% | 7.4–12.6°C |
| December | <1% | 19% | 1% | 20% | 1.7–7.3°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 5805916
- NOAA station
- USC00458207 · SUNNYSIDE
- Station distance
- 6.3 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 20 usable years
- Daylight
- Calculated from latitude 46.33°, 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.