Aargau, 399 m · continuously updated
Reuss: 13.0 °C at Mellingen river temperature · FOEN gauge 4.7 km away · 01.11. 13h
Temperature · last 4 and next 28 hours
Updated hourly.
Two-week trend.
Sunrise –, golden light until –
Sunset –, golden light from –
–
European index, measured continuously.
Daily maximum — protection advised from 3.
Snow settles about 300 m below it.
Neighbouring municipalities, as the crow flies.
Today (Saturday 14 Nov) in Birr: fog, −3 to 6 °C, precipitation 0.0 mm (0 %), wind up to 7 km/h. Tomorrow: light rain, −1 to 11 °C.
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Today | fog | −3 °C | 6 °C | 0.0 mm | 7 km/h |
| Tomorrow | light rain | −1 °C | 11 °C | 2.6 mm | 13 km/h |
| Mon 16 Nov | showers | 7 °C | 11 °C | 6.6 mm | 22 km/h |
| Tue 17 Nov | light rain | 7 °C | 14 °C | 5.4 mm | 30 km/h |
| Wed 18 Nov | thunderstorms | 10 °C | 13 °C | 13.3 mm | 24 km/h |
| Thu 19 Nov | light rain | 10 °C | 15 °C | 2.9 mm | 24 km/h |
| Fri 20 Nov | light rain | −1 °C | 10 °C | 4.5 mm | 24 km/h |
No rain expected today in Birr. Tomorrow: rain from 05:00 to 10:00. The 15-minute detail for the next two hours is shown on demand.
Saturday 14 Nov in Birr, hour by hour: sunny in the morning, sunny in the afternoon, fog in the evening. Low −3 °C around 08:00, high 6 °C around 15:00. No rainy hour.
| Time | Weather | Temp. | Precip. | Wind |
|---|---|---|---|---|
| 00:00 | sunny | 0 °C | 0.0 mm | 2 km/h |
| 01:00 | sunny | 0 °C | 0.0 mm | 2 km/h |
| 02:00 | sunny | −1 °C | 0.0 mm | 3 km/h |
| 03:00 | sunny | −1 °C | 0.0 mm | 2 km/h |
| 04:00 | sunny | −2 °C | 0.0 mm | 2 km/h |
| 05:00 | sunny | −2 °C | 0.0 mm | 2 km/h |
| 06:00 | sunny | −2 °C | 0.0 mm | 1 km/h |
| 07:00 | sunny | −2 °C | 0.0 mm | 0 km/h |
| 08:00 | fog | −3 °C | 0.0 mm | 0 km/h |
| 09:00 | sunny | −2 °C | 0.0 mm | 1 km/h |
| 10:00 | sunny | 0 °C | 0.0 mm | 1 km/h |
| 11:00 | partly cloudy | 3 °C | 0.0 mm | 3 km/h |
| 12:00 | partly cloudy | 4 °C | 0.0 mm | 7 km/h |
| 13:00 | partly cloudy | 5 °C | 0.0 mm | 6 km/h |
| 14:00 | mostly sunny | 6 °C | 0.0 mm | 5 km/h |
| 15:00 | mostly sunny | 6 °C | 0.0 mm | 5 km/h |
| 16:00 | sunny | 5 °C | 0.0 mm | 4 km/h |
| 17:00 | sunny | 3 °C | 0.0 mm | 4 km/h |
| 18:00 | sunny | 2 °C | 0.0 mm | 2 km/h |
| 19:00 | sunny | 1 °C | 0.0 mm | 1 km/h |
| 20:00 | fog | 0 °C | 0.0 mm | 1 km/h |
| 21:00 | fog | 0 °C | 0.0 mm | 1 km/h |
| 22:00 | fog | 0 °C | 0.0 mm | 1 km/h |
| 23:00 | fog | 0 °C | 0.0 mm | 1 km/h |
Today, Saturday 14 Nov in Birr: fog, −3 to 6 °C, wind up to 7 km/h. No precipitation expected. That is 3.5 °C below the climate normal for November in Birr (5.0 °C average over 1991-2020).
Tomorrow, Sunday 15 Nov, in Birr: light rain, −1 to 11 °C, wind up to 13 km/h. Precipitation expected: 2.6 mm, 89 % probability.
Today in Birr (399 m): −3 to 6 °C. Tomorrow: −1 to 11 °C. Over the next 7 days, highs range from 6 to 15 °C, averaging 11 °C.
This weekend in Birr: Saturday fog, −3 to 6 °C; Sunday light rain, −1 to 11 °C.
Yes: 6 days with precipitation are expected in Birr over the next 7 days, 35.3 mm in total. Wettest day: Wednesday 18 Nov (13.3 mm).
Today in Birr (399 m), the UV index peaks at 2 (low) around midday. No particular protection is needed. In the mountains, radiation rises by about 10 % per 1,000 m, and snow reflects up to 80 % of it.
The best day of the next 7 in Birr: Saturday 14 Nov, fog, up to 6 °C.
In Birr (399 m), the mean annual temperature is 9.9 °C. The warmest month is July (19.2 °C on average) and the coldest January (1.2 °C). About 1009 mm of precipitation falls per year, peaking in July (101 mm) with a minimum in February (68 mm). The sun shines for about 1549 hours a year, mostly in July (225 h). On average there are 76 frost days and 15 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 32.9 °C and the absolute minimum −8.4 °C.
Mean monthly precipitation (mm) — bar height relative to the wettest month.
| Month | Mean T | Abs. max | Abs. min | Precip. (mm) | Sunshine (h) | Frost days | Summer days |
|---|---|---|---|---|---|---|---|
| Jan | 1.2 °C | 11.7 °C | −8.4 °C | 80 | 41 | 19 | 0 |
| Feb | 1.9 °C | 13.9 °C | −7.8 °C | 68 | 74 | 18 | 0 |
| Mar | 5.7 °C | 19.2 °C | −4.6 °C | 73 | 133 | 12 | 0 |
| Apr | 9.7 °C | 24.0 °C | −1.4 °C | 70 | 169 | 3 | 1 |
| May | 13.8 °C | 28.0 °C | 2.9 °C | 100 | 183 | 0 | 5 |
| Jun | 17.5 °C | 31.6 °C | 6.7 °C | 92 | 205 | 0 | 13 |
| Jul | 19.2 °C | 32.9 °C | 9.1 °C | 101 | 225 | 0 | 18 |
| Aug | 18.6 °C | 31.9 °C | 8.5 °C | 95 | 208 | 0 | 16 |
| Sep | 14.4 °C | 26.9 °C | 4.6 °C | 72 | 151 | 0 | 4 |
| Oct | 10.0 °C | 21.7 °C | 0.6 °C | 80 | 86 | 1 | 0 |
| Nov | 5.0 °C | 15.5 °C | −3.6 °C | 82 | 43 | 7 | 0 |
| Dec | 1.9 °C | 12.0 °C | −7.2 °C | 96 | 31 | 16 | 0 |
| Year | 9.9 °C | 32.9 °C | −8.4 °C | 1009 | 1549 | 76 | 57 |
Birr sits at around 399 m above sea level in the canton of Aargau. This elevation directly affects temperatures, the rain-snow line and snow cover: on average, the temperature drops by about 0.55 °C per 100 m of altitude.
The warmest month in Birr is July, averaging 19.2 °C; the coldest is January, at 1.2 °C. The annual mean is 9.9 °C (MeteoSwiss 1991–2020 normals, reference station Buchs / Aarau).
Birr receives about 1009 mm of precipitation a year, or 84 mm a month on average. The wettest month is July (101 mm) and the driest February (68 mm), according to the MeteoSwiss 1991–2020 normals.
Birr averages 76 frost days a year, most of them in January (19 days). Conversely, 57 summer days exceed 25 °C, 15 of them above 30 °C. Mean values from the MeteoSwiss 1991–2020 normals.
The sun shines for about 1549 hours a year in Birr. The sunniest month is July (225 h) and the least sunny December (31 h), according to the MeteoSwiss 1991–2020 normals.
In Birr, the monthly mean rises from 1.2 °C in January to 19.2 °C in July: a 18.0 °C gap between the coldest and the warmest month. Absolute extremes over 1991–2020 range from −8.4 °C to 32.9 °C.
For warmth and sunshine: July (19.2 °C on average, 225 h of sun). To avoid rain, February is the driest month (68 mm). The coldest month is January (1.2 °C).
Source: MeteoSwiss open data (1991–2020 normals) — stations Buchs / Aarau (11 km, 387 m), Würenlingen / PSI (12 km, 334 m), Beznau (14 km, 326 m), adjusted to the elevation of Birr (399 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.