July
July · August · June
81climate match
Finland · 1991–2020
Best time to visit
Vierumäki.
July leads for comfortable weather in Vierumäki: typically 22.8°C by day, 12.8°C at night, with 71 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortJuly
Typical high22.8°C
Typical low12.8°C
Rain in July71 mm
July
July · August · June
45climate match
June
June · August · July
86climate match
The weakest month is January, scoring 5 against July’s 81 — days reach only -3.3°C, 27° 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
5-3.3° / -8.9°
Feb
5-3° / -9.6°
Mar
51.8° / -6.2°
Apr
178.7° / -0.8°
May
5016° / 4.7°
Jun
6820.2° / 9.8°
Jul
8122.8° / 12.8°
Aug
7320.8° / 11.5°
Sep
4714.7° / 7°
Oct
117.5° / 2.2°
Nov
52.2° / -1.7°
Dec
5-1.1° / -5.6°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | -3.3°C | -8.9°C | 45 mm | 11.2 | 6 h 21 | 5 | Strong coverage |
| February | -3°C | -9.6°C | 36 mm | 9.6 | 8 h 52 | 5 | Strong coverage |
| March | 1.8°C | -6.2°C | 33 mm | 8.4 | 11 h 31 | 5 | Strong coverage |
| April | 8.7°C | -0.8°C | 30 mm | 7 | 14 h 33 | 17 | Strong coverage |
| May | 16°C | 4.7°C | 43 mm | 7.8 | 17 h 22 | 50 | Strong coverage |
| June | 20.2°C | 9.8°C | 66 mm | 9.8 | 19 h 15 | 68 | Strong coverage |
| July | 22.8°C | 12.8°C | 71 mm | 9.9 | 18 h 27 | 81 | Strong coverage |
| August | 20.8°C | 11.5°C | 67 mm | 9.6 | 15 h 48 | 73 | Strong coverage |
| September | 14.7°C | 7°C | 53 mm | 9 | 12 h 47 | 47 | Strong coverage |
| October | 7.5°C | 2.2°C | 65 mm | 11.1 | 9 h 53 | 11 | Strong coverage |
| November | 2.2°C | -1.7°C | 56 mm | 11.3 | 7 h 08 | 5 | Strong coverage |
| December | -1.1°C | -5.6°C | 50 mm | 11.8 | 5 h 33 | 5 | Strong coverage |
What has changed
Vierumäki runs +2.2°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
+2.4
Feb
+2.9
Mar
+2.3
Apr
+2.0
May
+1.4
Jun
+1.5
Jul
+2.2
Aug
+2.5
Sep
+2.8
Oct
+1.1
Nov
+2.2
Dec
+2.9
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 8.1°C15 Jan 2020 | -37.5°C12 Jan 1987 | 23 mm1 Jan 1962 | 87 mm1990 · driest 10 mm in 1996 | 68 |
| February | 9.3°C23 Feb 1990 | -36.6°C3 Feb 1966 | 20 mm16 Feb 2024 | 82 mm2016 · driest 4 mm in 1994 | 68 |
| March | 16.0°C28 Mar 2007 | -31.4°C19 Mar 1963 | 20 mm21 Mar 1974 | 64 mm2023 · driest 3 mm in 1969 | 68 |
| April | 23.7°C29 Apr 1998 | -19.0°C3 Apr 1960 | 26 mm11 Apr 1982 | 71 mm1970 · driest 6 mm in 2002 | 68 |
| May | 30.8°C19 May 2014 | -6.2°C2 May 1995 | 29 mm11 May 2019 | 119 mm2021 · driest 2 mm in 2024 | 68 |
| June | 32.7°C22 Jun 2021 | -1.3°C6 Jun 1962 | 68 mm30 Jun 2020 | 125 mm1981 · driest 1 mm in 1970 | 68 |
| July | 34.9°C28 Jul 2010 | 3.4°C17 Jul 1987 | 70 mm27 Jul 1979 | 212 mm1979 · driest 12 mm in 1973 | 68 |
| August | 33.8°C7 Aug 2010 | -0.8°C29 Aug 1966 | 52 mm12 Aug 1972 | 165 mm1972 · driest 8 mm in 1996 | 67 |
| September | 27.5°C5 Sep 2024 | -6.1°C30 Sep 1993 | 59 mm2 Sep 2004 | 167 mm1962 · driest 5 mm in 2007 | 67 |
| October | 19.5°C14 Oct 2018 | -14.0°C23 Oct 2002 | 31 mm31 Oct 2006 | 161 mm2006 · driest 13 mm in 2002 | 67 |
| November | 12.9°C12 Nov 2022 | -21.2°C22 Nov 1990 | 25 mm30 Nov 2005 | 128 mm1996 · driest 5 mm in 1993 | 67 |
| December | 11.0°C21 Dec 2015 | -33.5°C17 Dec 1978 | 26 mm20 Dec 1970 | 115 mm2017 · driest 9 mm in 1978 | 67 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 28 | <1 |
| February | 0 | 0 | 26 | <1 |
| March | 0 | 0 | 27 | <1 |
| April | 0 | 0 | 17 | <1 |
| May | 2 | 0 | 4 | 1 |
| June | 4 | <1 | <1 | 2 |
| July | 9 | 1 | 0 | 2 |
| August | 5 | <1 | 0 | 2 |
| September | 0 | 0 | 2 | 1 |
| October | 0 | 0 | 10 | 2 |
| November | 0 | 0 | 18 | 1 |
| December | 0 | 0 | 25 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 35% | 2% | 48% | -9.2–-0.7°C |
| February | 0% | 31% | 1% | 39% | -8.2–1.0°C |
| March | 0% | 26% | <1% | 30% | -1.7–4.2°C |
| April | 1% | 24% | 2% | 27% | 5.4–10.4°C |
| May | 19% | 24% | 3% | 28% | 13.0–18.4°C |
| June | 40% | 30% | 5% | 37% | 18.0–22.8°C |
| July | 53% | 33% | 7% | 43% | 19.6–25.3°C |
| August | 37% | 34% | 7% | 45% | 17.3–22.7°C |
| September | 6% | 33% | 5% | 43% | 11.2–16.6°C |
| October | 0% | 36% | 5% | 49% | 5.0–9.7°C |
| November | 0% | 39% | 3% | 53% | -1.0–4.6°C |
| December | 0% | 38% | 2% | 51% | -6.4–2.1°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 631769
- NOAA station
- FIE00143066 · HEINOLA ASEMANTAUS
- Station distance
- 12.3 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 29 usable years
- Daylight
- Calculated from latitude 61.11°, 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.