June
June · May · September
88climate match
United States · 1991–2020
Best time to visit
Petersburg.
June leads for comfortable weather in Petersburg: typically 26.5°C by day, 12.8°C at night, with 12 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortJune
Typical high26.5°C
Typical low12.8°C
Rain in June12 mm
July
July · August · June
78climate match
May
May · October · April
87climate match
The weakest month is January, scoring 5 against June’s 88 — days reach only 6°C, 18° 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
56° / -0.6°
Feb
209.5° / 0°
Mar
4114.1° / 2.3°
Apr
6218.3° / 5.4°
May
8723.4° / 9.5°
Jun
8826.5° / 12.8°
Jul
7331.6° / 16.1°
Aug
7431.5° / 15.8°
Sep
8227.4° / 11.3°
Oct
6419° / 5.9°
Nov
2410.5° / 1.8°
Dec
55.6° / -0.5°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 6°C | -0.6°C | 61 mm | 10.2 | 9 h 03 | 5 | Strong coverage |
| February | 9.5°C | 0°C | 40 mm | 7.6 | 10 h 18 | 20 | Strong coverage |
| March | 14.1°C | 2.3°C | 30 mm | 6.8 | 11 h 46 | 41 | Strong coverage |
| April | 18.3°C | 5.4°C | 21 mm | 4.9 | 13 h 27 | 62 | Strong coverage |
| May | 23.4°C | 9.5°C | 19 mm | 4.1 | 14 h 53 | 87 | Strong coverage |
| June | 26.5°C | 12.8°C | 12 mm | 2.6 | 15 h 40 | 88 | Strong coverage |
| July | 31.6°C | 16.1°C | 4 mm | 0.9 | 15 h 22 | 73 | Strong coverage |
| August | 31.5°C | 15.8°C | 4 mm | 1.1 | 14 h 07 | 74 | Strong coverage |
| September | 27.4°C | 11.3°C | 9 mm | 1.7 | 12 h 28 | 82 | Strong coverage |
| October | 19°C | 5.9°C | 28 mm | 6.1 | 10 h 51 | 64 | Strong coverage |
| November | 10.5°C | 1.8°C | 50 mm | 9.4 | 9 h 25 | 24 | Strong coverage |
| December | 5.6°C | -0.5°C | 68 mm | 10.4 | 8 h 43 | 5 | Strong coverage |
What has changed
Petersburg runs +0.9°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
+1.2
Feb
+0.3
Mar
+0.4
Apr
+0.5
May
+0.8
Jun
+0.6
Jul
+1.6
Aug
+1.7
Sep
+1.0
Oct
+0.4
Nov
+0.9
Dec
+1.2
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 20.0°C31 Jan 1971 | -28.3°C31 Jan 1950 | 46 mm1 Jan 2009 | 183 mm1970 · driest 4 mm in 1985 | 78 |
| February | 21.1°C10 Feb 2022 | -31.7°C3 Feb 1950 | 40 mm7 Feb 1996 | 113 mm1996 · driest 3 mm in 1967 | 78 |
| March | 26.7°C28 Mar 1994 | -14.3°C5 Mar 2019 | 22 mm29 Mar 1983 | 91 mm1957 · driest 4 mm in 1973 | 78 |
| April | 35.0°C30 Apr 1998 | -5.0°C3 Apr 2007 | 39 mm27 Apr 1990 | 51 mm2019 · driest 0 mm in 1977 | 78 |
| May | 41.7°C30 May 1986 | -2.2°C1 May 1954 | 27 mm26 May 1953 | 59 mm1998 · driest 0 mm in 1992 | 78 |
| June | 47.8°C28 Jun 2021 | 2.8°C1 Jun 1966 | 20 mm25 Jun 2013 | 36 mm2010 · driest 0 mm in 2025 | 78 |
| July | 44.4°C29 Jul 2022 | 4.4°C8 Jul 1981 | 21 mm9 Jul 1995 | 32 mm1995 · driest 0 mm in 2012 | 79 |
| August | 43.3°C16 Aug 2023 | 5.6°C29 Aug 1980 | 20 mm21 Aug 1990 | 37 mm1983 · driest 0 mm in 1958 | 77 |
| September | 40.6°C3 Sep 1988 | -1.7°C17 Sep 1965 | 30 mm10 Sep 1985 | 43 mm1985 · driest 0 mm in 1987 | 77 |
| October | 32.2°C5 Oct 1980 | -9.4°C31 Oct 2002 | 47 mm27 Oct 1994 | 103 mm1994 · driest 0 mm in 1988 | 78 |
| November | 23.3°C14 Nov 2021 | -18.3°C24 Nov 1985 | 48 mm19 Nov 1996 | 139 mm1973 · driest 3 mm in 2004 | 78 |
| December | 21.1°C1 Dec 2021 | -22.8°C8 Dec 1972 | 55 mm18 Dec 2025 | 228 mm1964 · driest 10 mm in 1976 | 78 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 16 | 2 | 4 |
| February | 0 | 0 | 15 | <1 | 2 |
| March | <1 | 0 | 9 | <1 | <1 |
| April | 3 | <1 | 2 | <1 | 0 |
| May | 12 | 4 | <1 | <1 | 0 |
| June | 18 | 8 | 0 | <1 | 0 |
| July | 28 | 20 | 0 | <1 | 0 |
| August | 29 | 20 | 0 | <1 | 0 |
| September | 20 | 10 | 0 | <1 | 0 |
| October | 3 | <1 | 3 | <1 | <1 |
| November | 0 | 0 | 10 | 1 | <1 |
| December | 0 | 0 | 17 | 2 | 2 |
The best month has moved. On the 1961–1990 numbers the strongest month here was June (scoring 86); on 2011–2025 it is May (90). 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% | 33% | 5% | 41% | 0.8–8.5°C |
| February | <1% | 27% | 4% | 32% | 5.9–12.1°C |
| March | 7% | 21% | 2% | 21% | 11.3–16.0°C |
| April | 32% | 13% | <1% | 10% | 15.5–20.5°C |
| May | 64% | 11% | <1% | 8% | 20.6–25.7°C |
| June | 86% | 8% | <1% | 2% | 24.4–28.9°C |
| July | 97% | 3% | <1% | <1% | 28.1–33.5°C |
| August | 95% | 5% | <1% | 3% | 28.2–33.2°C |
| September | 88% | 7% | <1% | 5% | 24.4–29.5°C |
| October | 40% | 17% | 2% | 20% | 16.8–21.2°C |
| November | <1% | 32% | 4% | 42% | 7.9–12.4°C |
| December | <1% | 34% | 6% | 44% | 3.0–7.5°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 5745542
- NOAA station
- USW00024219 · DALLESPORT AP
- Station distance
- 6.9 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 29 usable years
- Daylight
- Calculated from latitude 45.61°, 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.