TT Circuit Assen Helipad

NL-0048 · Drenthe, Netherlands

Climate TT Circuit Assen Helipad 2020-2024

Climate and trends: average temperature, flight conditions, precipitation, wind speed and direction.

Calculated from historical METAR data of Groningen Airport Eelde (EHGG) between 2020 and 2024.

VFR conditions (%)

Month Average 2024 2023 2022 2021 2020
January 38.7 52 34 31 47 27
February 47.6 29 43 54 58 44
March 60.9 54 78 51 70
April 76.0 70 76 72 88
May 76.9 74 82 63 87
June 74.7 84 86 67 75
July 76.7 79 80 65 73
August 80.1 73 88 66 82
September 74.2 79 83 62 69
October 61.9 53 68 66 57
November 49.4 45 57 40 60
December 34.9 32 34 35 27
Average 63.2 40.0 64.2 73.0 59.8 67.4

15th best VFR conditions of Netherlands

VFR conditions during daylight period

Percentage of observations where the VFR minimums for ceiling and visibility are met: visibility of 8 km or more and a ceiling of 3,000 ft or more. Only observations between sunrise and sunset are taken into account.

Marginal VFR conditions (%)

Month Average 2024 2023 2022 2021 2020
January 72.0 86 80 71 72 60
February 80.2 72 84 87 76 91
March 87.3 88 89 90 96
April 93.4 89 96 96 96
May 94.0 92 96 93 98
June 92.6 96 97 85 90
July 93.1 94 96 87 90
August 94.6 93 96 92 94
September 89.9 95 93 87 83
October 86.6 87 89 83 86
November 75.0 81 80 67 78
December 62.4 62 60 59 56
Average 86.3 78.5 88.2 90.5 84.5 87.1

Marginal VFR conditions or better during daylight period

Percentage of observations where the MVFR minimums for ceiling and visibility are met: visibility of 5 km or more and a ceiling of 1,000 ft or more. Only observations between sunrise and sunset are taken into account.

Maximum temperatures (°C)

Month Average 2024 2023 2022 2021 2020
January 6.0 6 7 7 5 8
February 7.6 9 9 9 6 9
March 10.0 10 12 10 10
April 13.4 13 13 10 16
May 17.5 17 18 14 17
June 21.9 24 21 22 22
July 22.4 22 23 22 20
August 23.0 22 25 20 25
September 19.5 22 19 20 20
October 15.1 15 16 15 14
November 9.6 10 10 10 11
December 6.7 8 3 7 7
Average 13.6 7.4 14.7 15.1 13.3 14.8

12th highest temperature of Netherlands

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°C)

Month Average 2024 2023 2022 2021 2020
January 1.0 0 3 3 0 3
February 1.3 5 1 2 -1 4
March 1.8 3 0 2 2
April 3.2 3 4 0 4
May 7.0 8 7 6 5
June 11.4 12 10 11 12
July 12.0 12 11 13 10
August 12.4 12 12 13 14
September 9.5 11 9 11 9
October 8.0 9 9 8 8
November 3.9 4 5 5 5
December 2.2 4 -2 1 3
Average 5.7 2.3 6.6 5.9 5.7 6.4

2nd lowest temperature of Netherlands

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month Average 2024 2023 2022 2021 2020
January 24.6 22 23 15 26 26
February 21.7 25 14 33 16 41
March 17.8 28 7 18 16
April 14.2 19 16 21 6
May 12.5 8 11 34 9
June 11.9 5 12 7 19
July 14.8 22 10 16 24
August 14.9 22 2 20 18
September 19.1 12 28 10 12
October 25.2 24 20 26 30
November 26.1 42 19 23 19
December 25.0 26 20 20 24
Average 18.4 23.4 18.9 14.8 19.2 19.2

Precipitation during daylight period

Percentage of observations with observed rain, drizzle, snow or hail. Only observations between sunrise and sunset are taken into account.

Wind speed (knots)

Month Average 2024 2023 2022 2021 2020
January 9.8 11 11 10 8 10
February 10.6 10 9 14 9 14
March 10.1 11 7 10 11
April 9.0 9 10 9 9
May 8.1 8 8 9 8
June 7.6 8 7 7 7
July 7.7 9 8 7 8
August 7.5 7 7 8 7
September 7.3 7 7 6 7
October 9.1 9 9 9 9
November 8.7 10 10 8 9
December 8.9 10 7 8 8
Average 8.8 10.5 8.8 8.3 8.1 8.7

12th highest wind speed of Netherlands

Average wind speed

Excluding wind gusts. Only observations between sunrise and sunset are taken into account.

Prevailing wind direction

Month 2024 2023 2022 2021 2020
January 233° 229° 254° 224° 220°
February 220° 267° 239° 140° 229°
March 239° 081° 258° 220°
April 063° 013° 335° 035°
May 016° 268° 247° 325°
June 011° 267° 335° 222°
July 236° 277° 271° 249°
August 245° 358° 275° 208°
September 189° 251° 216° 212°
October 215° 209° 208° 195°
November 213° 187° 225° 205°
December 232° 152° 209° 184°

Prevailing wind direction

Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.