July
July · August · June
80climate match
Finland · 1991–2020
Best time to visit
Riihimäki.
July leads for comfortable weather in Riihimäki: typically 22.8°C by day, 11.7°C at night, with 70 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortJuly
Typical high22.8°C
Typical low11.7°C
Rain in July70 mm
July
July · August · June
43climate match
June
June · August · July
85climate match
The weakest month is January, scoring 5 against July’s 80 — days reach only -2.4°C, 26° 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
5-2.4° / -8.1°
Feb
5-2.4° / -9°
Mar
52.2° / -6°
Apr
189° / -0.8°
May
4916° / 3.9°
Jun
6620° / 8.8°
Jul
8022.8° / 11.7°
Aug
7021° / 10.4°
Sep
4815.3° / 6.4°
Oct
128° / 1.8°
Nov
52.7° / -1.8°
Dec
5-0.4° / -5.3°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | -2.4°C | -8.1°C | 53 mm | 11.5 | 6 h 27 | 5 | Strong coverage |
| February | -2.4°C | -9°C | 41 mm | 9 | 8 h 55 | 5 | Strong coverage |
| March | 2.2°C | -6°C | 35 mm | 7.6 | 11 h 32 | 5 | Strong coverage |
| April | 9°C | -0.8°C | 34 mm | 7.1 | 14 h 31 | 18 | Strong coverage |
| May | 16°C | 3.9°C | 41 mm | 7.2 | 17 h 16 | 49 | Strong coverage |
| June | 20°C | 8.8°C | 65 mm | 9.6 | 19 h 06 | 66 | Strong coverage |
| July | 22.8°C | 11.7°C | 70 mm | 9.1 | 18 h 20 | 80 | Strong coverage |
| August | 21°C | 10.4°C | 75 mm | 10.2 | 15 h 45 | 70 | Strong coverage |
| September | 15.3°C | 6.4°C | 54 mm | 9 | 12 h 47 | 48 | Strong coverage |
| October | 8°C | 1.8°C | 67 mm | 10.5 | 9 h 55 | 12 | Strong coverage |
| November | 2.7°C | -1.8°C | 65 mm | 11.6 | 7 h 13 | 5 | Strong coverage |
| December | -0.4°C | -5.3°C | 56 mm | 11.7 | 5 h 40 | 5 | Strong coverage |
What has changed
Riihimäki runs +2.1°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
+2.8
Mar
+2.6
Apr
+2.3
May
+1.4
Jun
+1.2
Jul
+1.8
Aug
+1.9
Sep
+2.6
Oct
+0.9
Nov
+2.1
Dec
+2.8
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 8.1°C10 Jan 2007 | -37.5°C31 Jan 1967 | 41 mm23 Jan 1995 | 103 mm2005 · driest 7 mm in 1996 | 68 |
| February | 8.9°C23 Feb 1990 | -36.9°C4 Feb 1966 | 27 mm16 Feb 2020 | 97 mm1990 · driest 1 mm in 1994 | 68 |
| March | 16.7°C27 Mar 2007 | -32.0°C19 Mar 1963 | 27 mm3 Mar 2000 | 72 mm1992 · driest 3 mm in 1964 | 68 |
| April | 24.2°C24 Apr 2000 | -21.4°C1 Apr 1963 | 28 mm2 Apr 2024 | 85 mm1977 · driest 2 mm in 1987 | 68 |
| May | 29.5°C19 May 2014 | -6.6°C6 May 1974 | 45 mm22 May 2010 | 126 mm2010 · driest 2 mm in 1993 | 68 |
| June | 31.9°C21 Jun 2021 | -2.6°C18 Jun 1978 | 41 mm30 Jun 2020 | 131 mm2008 · driest 10 mm in 1970 | 68 |
| July | 34.1°C28 Jul 2010 | 1.2°C5 Jul 1965 | 57 mm24 Jul 1997 | 245 mm2004 · driest 4 mm in 1994 | 68 |
| August | 32.7°C8 Aug 2010 | -2.5°C29 Aug 1966 | 53 mm30 Aug 1969 | 176 mm2021 · driest 6 mm in 1996 | 67 |
| September | 27.2°C6 Sep 1968 | -10.4°C30 Sep 1993 | 56 mm12 Sep 1962 | 146 mm1962 · driest 8 mm in 1959 | 67 |
| October | 18.7°C8 Oct 1964 | -16.4°C22 Oct 2002 | 35 mm4 Oct 2006 | 168 mm2017 · driest 15 mm in 2016 | 67 |
| November | 13.3°C3 Nov 2015 | -24.8°C21 Nov 1988 | 43 mm30 Nov 2005 | 173 mm1996 · driest 3 mm in 1993 | 67 |
| December | 10.6°C20 Dec 2015 | -33.1°C25 Dec 1995 | 34 mm18 Dec 1966 | 140 mm2011 · driest 7 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 | 25 | <1 |
| March | 0 | 0 | 26 | <1 |
| April | 0 | 0 | 18 | <1 |
| May | 1 | 0 | 6 | <1 |
| June | 4 | <1 | <1 | 2 |
| July | 9 | 1 | 0 | 2 |
| August | 5 | <1 | 0 | 3 |
| September | <1 | 0 | 3 | 2 |
| October | 0 | 0 | 12 | 2 |
| November | 0 | 0 | 18 | 2 |
| December | 0 | 0 | 24 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 36% | 2% | 47% | -8.2–0.3°C |
| February | 0% | 30% | 3% | 38% | -7.4–1.5°C |
| March | 0% | 25% | 2% | 30% | -1.2–4.7°C |
| April | 2% | 24% | 2% | 27% | 5.5–10.8°C |
| May | 19% | 22% | 3% | 25% | 13.1–18.6°C |
| June | 41% | 29% | 6% | 38% | 17.8–22.7°C |
| July | 54% | 32% | 7% | 41% | 19.8–25.3°C |
| August | 39% | 34% | 9% | 45% | 17.8–22.5°C |
| September | 7% | 32% | 5% | 42% | 12.0–16.9°C |
| October | 0% | 34% | 6% | 47% | 5.8–10.2°C |
| November | 0% | 39% | 5% | 53% | -0.2–5.1°C |
| December | 0% | 37% | 3% | 51% | -5.6–2.6°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 639406
- NOAA station
- FIE00142751 · HYVINKAA HYVINKAANKYLA
- Station distance
- 15.9 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 30 usable years
- Daylight
- Calculated from latitude 60.74°, 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.