Weather statistics for Øsaker observation site, Sarpsborg (Østfold)

  1. Warning sign

    Ongoing: High forest fire danger (Vest-Agder, Aust-Agder, Telemark, Vestfold, Oestfold, Oslo and Akershus and Buskerud)

    Very high grass and forest fire danger until significant amount of precipitation.


    1. Saturday July 21, 2018 08:00
      Increasing danger
    2. Ukjent sluttidspunkt

    Vegetation is very easily ignited and very large areas may be affected. Be very careful with open fire. Follow the instructions from the local authorities.

Øsaker observation station (3370)

The station is located in Sarpsborg municipality, 45 m.a.s.l. It is the closest official weather station, 0.0 km away from Øsaker observation site. The station was established in January 2005. The station measures precipitation and temperature. There are no normals for precipitation and temperature. There may be missing data.

Last 30 days: Highest temperature was 31.1 °C (17 July), and the lowest was 4.4 °C (23 June). The total precipitation was 9.0 mm. Highest daily precipitation was 4.5 mm (13 July), measured at 7am (8am daylight savings) for the past 24 hours.

Last 13 full months: Highest temperature was 31.1 °C (17. Jul. 2018) and the lowest -16.8 °C (18. Mar. 2018). Highest daily precipitation was 37.0 mm (25. Oct. 2017).

Graph explanation. Hide explanation

The black line shows mean value (both precipitation and temperature). Some stations does not have mean values, and hence no black line.

The red/blue line shows average temperature during the day (24h) (equalized for 30 days). The line is red by pluss degrees, and blue by minus degrees.

The red/blue areas shows the temperature variations throughout the day (24h) with max- and min. temperature as endpoints. The area is red by pluss degrees, and blue by minus degrees.

The lightblue bars shows total precipitation this month. The black lines crossing is the normal (mean) value for precipitation.

The dark grey bars behind the precipitation bars shows snowdepth measured day by day.

Some stations only measures precipitation, while others only measures temperature. If an area or bar is missing the station does not measure this data.

NB! Precipitation is measured at 07 hours Norwegian time. The value (in mm) shows last 24 hours until 07 hours (08 hours summertime). Download other weather statistics from

Tabular view for temperature and precipitation per month
Months Temperature Precipitation
Average Normal Warmest Coldest Total Normal Highest
daily value
Jun 2018 16.8°C 28.9°C Jun 2 4.4°C Jun 23 34.4 mm 9.2 mm Jun 15
May 2018 15.0°C 29.7°C May 30 0.5°C May 4 31.5 mm 14.0 mm May 1
Apr 2018 5.5°C 17.6°C Apr 14 -7.1°C Apr 3 0.6 mm Apr 25
Mar 2018 -3.0°C 8.2°C Mar 25 -16.8°C Mar 18
Feb 2018 -4.0°C 2.1°C Feb 1 -16.0°C Feb 26
Jan 2018 -1.3°C 6.0°C Jan 24 -10.4°C Jan 7
Dec 2017 -0.1°C 8.6°C Dec 24 -10.8°C Dec 13
Nov 2017 2.3°C 11.0°C Nov 2 -6.4°C Nov 20 8.9 mm Nov 10
Oct 2017 7.8°C 15.8°C Oct 16 -2.7°C Oct 31 151.7 mm 37.0 mm Oct 25
Sep 2017 12.1°C 18.8°C Sep 15 5.6°C Sep 16 101.5 mm 26.2 mm Sep 12
Aug 2017 14.9°C 22.4°C Aug 10 4.8°C Aug 23 136.7 mm 34.0 mm Aug 10
Jul 2017 16.1°C 25.9°C Jul 20 6.5°C Jul 13 55.3 mm 18.5 mm Jul 9
Jun 2017 14.5°C 24.1°C Jun 30 5.8°C Jun 1 65.0 mm 18.3 mm Jun 10