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January 2024


January 2024

Temperatures (all temperatures in degrees Celsius; all averages 1991-2020)

Mean daily maximum: 7.0     Difference from average: +0.2

Mean daily minimum: 2.0      Difference from average: +0.7

Mean air temperature: 4.5      Difference from average: +0.4

Absolute maximum: 13.1 (21st)

Absolute minimum: -5.0 (17th)

Mean grass minimum: 0.1      Difference from average: +0.5

Absolute grass minimum: -9.2 (17th)

Mean concrete minimum: 0.5

Absolute concrete minimum: -7.1 (17th)

Number of ground frosts: 13  Difference from average: -4

Number of air frosts: 6           Difference from average: -5

Mean soil temperature at 300 mm depth: 5.3

Mean soil temperature at 1000 mm depth: 7.2

Rainfall (all totals in millimetres; all averages 1991-2020)

Total for the month: 64.2        Difference from average: +10.8

Percentage of the average: 120%

Wettest day: 19.4 (29th)

Number of rain days (>0.1 mm): 20   Difference from average: +1

Number of wet days (=>1.0 mm): 12

3-month total rainfall to 31st January 2024: 267.8       Difference from average: 68.1

6-month total rainfall to 31st January 2024: 550.6       Difference from average: 166

12-month total rainfall to 31st January 2024: 864.8     Difference from average: 183.8

Sunshine (all totals in hours; all averages 1991-2020)

Total for the month: 69.6                    Difference from average: +7.7

Percentage of the average:  113%

Mean daily sunshine: 2.2       Difference from average: +0.2

Sunniest day: 7.3 (15th)

Number of days with no recorded sunshine: 2

Note that the monthly sunshine total is now calculated from the UKMO E&NE regional total. Daily sunshine totals quoted here and in the data summary are uncorrected.

Wind (kph; all data from the West Building roof, Lower Mountjoy campus)


Average wind speed: 6.7

Maximum gust: 91.7 (24th, 05:15, WSW)

Comments on January 2024

Despite some very cold days (although there were no ice days), January ended up with an above-average mean air temperature, given some very mild days towards the end of the month. The maximum absolute maximum of 13.1 °C on the 21st is the equal 40th warmest day on record for January since 1850 (n=5425). Days tended to be more above average than nights, although the mean maximum (7.0 °C) is only the equal 48th highest in 180 years. Both rainfall and sunshine were a little above average too. There was a gust of 91.7 kph on the 24th (Storm Jocelyn).

Emeritus Professor Tim Burt

Department of Geography

Durham University

[email protected]