July
July · August · June
78climate match
Norway · 1991–2020
Best time to visit
Lillestrøm.
July leads for comfortable weather in Lillestrøm: typically 22.7°C by day, 13.4°C at night, with 87 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortJuly
Typical high22.7°C
Typical low13.4°C
Rain in July87 mm
July
July · August · June
42climate match
June
June · May · September
81climate match
The weakest month is January, scoring 5 against July’s 78 — days reach only 0.1°C, 24° 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
50.1° / -4.7°
Feb
51.1° / -4.7°
Mar
55.3° / -2.1°
Apr
2711° / 2.1°
May
5216.7° / 6.8°
Jun
6820.4° / 10.8°
Jul
7822.7° / 13.4°
Aug
7021.3° / 12.5°
Sep
5116.4° / 8.6°
Oct
179.6° / 3.8°
Nov
54.4° / 0°
Dec
50.9° / -3.7°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 0.1°C | -4.7°C | 58 mm | 9.9 | 6 h 40 | 5 | Strong coverage |
| February | 1.1°C | -4.7°C | 46 mm | 8.1 | 9 h 01 | 5 | Strong coverage |
| March | 5.3°C | -2.1°C | 42 mm | 7.2 | 11 h 33 | 5 | Strong coverage |
| April | 11°C | 2.1°C | 48 mm | 8.1 | 14 h 26 | 27 | Strong coverage |
| May | 16.7°C | 6.8°C | 59 mm | 9 | 17 h 05 | 52 | Strong coverage |
| June | 20.4°C | 10.8°C | 80 mm | 10.1 | 18 h 47 | 68 | Strong coverage |
| July | 22.7°C | 13.4°C | 87 mm | 11.1 | 18 h 04 | 78 | Strong coverage |
| August | 21.3°C | 12.5°C | 103 mm | 11.3 | 15 h 37 | 70 | Strong coverage |
| September | 16.4°C | 8.6°C | 83 mm | 9.2 | 12 h 45 | 51 | Strong coverage |
| October | 9.6°C | 3.8°C | 94 mm | 10.8 | 9 h 59 | 17 | Strong coverage |
| November | 4.4°C | 0°C | 83 mm | 11.1 | 7 h 23 | 5 | Strong coverage |
| December | 0.9°C | -3.7°C | 53 mm | 10 | 5 h 56 | 5 | Strong coverage |
What has changed
Lillestrøm runs +1.9°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
+1.9
Feb
+2.7
Mar
+2.9
Apr
+2.7
May
+1.6
Jun
+1.0
Jul
+1.7
Aug
+1.2
Sep
+2.0
Oct
+1.2
Nov
+2.0
Dec
+2.1
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 12.5°C5 Jan 1973 | -26.0°C3 Jan 1941 | 36 mm20 Jan 1995 | 137 mm1988 · driest 4 mm in 1963 | 90 |
| February | 13.8°C27 Feb 1943 | -24.9°C10 Feb 1985 | 28 mm1 Feb 2008 | 137 mm2014 · driest 1 mm in 1986 | 90 |
| March | 21.5°C27 Mar 2012 | -21.3°C12 Mar 1942 | 32 mm9 Mar 1979 | 121 mm1999 · driest 0 mm in 1996 | 90 |
| April | 25.4°C29 Apr 2000 | -14.9°C4 Apr 1942 | 35 mm24 Apr 2023 | 100 mm2023 · driest 0 mm in 1974 | 90 |
| May | 31.1°C30 May 2018 | -3.4°C9 May 1941 | 43 mm5 May 1952 | 115 mm1963 · driest 0 mm in 1994 | 90 |
| June | 33.7°C29 Jun 1947 | 1.4°C1 Jun 1975 | 73 mm26 Jun 2014 | 143 mm1999 · driest 13 mm in 1959 | 90 |
| July | 34.6°C27 Jul 2018 | 3.7°C5 Jul 1951 | 60 mm31 Jul 1989 | 208 mm1960 · driest 15 mm in 1994 | 90 |
| August | 34.2°C3 Aug 1982 | 3.7°C27 Aug 1940 | 57 mm7 Aug 2023 | 305 mm1951 · driest 0 mm in 1947 | 89 |
| September | 27.2°C6 Sep 2024 | -3.3°C27 Sep 1939 | 59 mm8 Sep 1965 | 220 mm1965 · driest 5 mm in 1939 | 89 |
| October | 21.0°C9 Oct 1969 | -8.0°C30 Oct 1992 | 48 mm27 Oct 1959 | 220 mm2014 · driest 8 mm in 2015 | 89 |
| November | 16.1°C6 Nov 2020 | -16.0°C23 Nov 1965 | 46 mm19 Nov 1974 | 287 mm2000 · driest 15 mm in 1995 | 89 |
| December | 12.6°C14 Dec 1991 | -20.8°C14 Dec 1981 | 29 mm23 Dec 1984 | 150 mm1959 · driest 3 mm in 1957 | 89 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 26 | 1 |
| February | 0 | 0 | 23 | 1 |
| March | 0 | 0 | 21 | <1 |
| April | <1 | 0 | 8 | 1 |
| May | 2 | 0 | <1 | 2 |
| June | 4 | <1 | 0 | 3 |
| July | 8 | 1 | 0 | 3 |
| August | 5 | <1 | 0 | 4 |
| September | <1 | 0 | <1 | 3 |
| October | 0 | 0 | 6 | 4 |
| November | 0 | 0 | 15 | 3 |
| December | 0 | 0 | 24 | 1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 30% | 4% | 39% | -5.3–2.6°C |
| February | 0% | 27% | 3% | 31% | -4.7–3.5°C |
| March | <1% | 23% | 3% | 28% | 1.1–7.9°C |
| April | 1% | 25% | 4% | 29% | 7.6–12.6°C |
| May | 19% | 27% | 5% | 35% | 14.0–18.1°C |
| June | 41% | 34% | 8% | 45% | 18.0–22.8°C |
| July | 53% | 36% | 9% | 50% | 19.9–24.2°C |
| August | 43% | 36% | 11% | 49% | 18.7–23.7°C |
| September | 10% | 33% | 10% | 45% | 14.0–17.9°C |
| October | <1% | 34% | 10% | 44% | 7.5–11.3°C |
| November | 0% | 36% | 8% | 46% | 1.2–6.4°C |
| December | 0% | 32% | 5% | 39% | -3.0–3.6°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 3147465
- NOAA station
- NOM00001492 · OSLO BLINDERN
- Station distance
- 18.4 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 30 usable years
- Daylight
- Calculated from latitude 59.96°, 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.