Monthly Climate Summary for February 2004 at Hampstead  
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           Exceptionally mild start, but the second half was generally cold and dry   Back Forward
Overall mean temperature was 5.3 ēC which is +0.9 degC compared with the 1971-2000 average
Mean day maximum (09-21) was 7.7 ēC
Mean night minimum (21-09) was 3.1 ēC
Mean 24hr maximum (09-09) was 7.8 ēC which is +0.6 degC compared with the 1971-2000 average
Mean 24hr minimum (09-09) was 2.8 ēC which is +1.3 degC compared with the 1971-2000 average
Highest day max was 16.0 ēC on  the   4
Lowest day max was 1.9 ēC on  the 28
Highest night min was 11.3 ēC on  the 4
Lowest night min was -4.4 ēC on  the 26
Lowest grass min was -11.4 ēC on  the 26
Total rainfall this month was 27.9 mm which is 69.9 per  cent of the 1971-2000 average
Highest daily fall was 7.5 mm on  the 1
Number of hours with rain was 51.0 hrs
Equiv. TSR rainfall duration was 35.7 hrs which is 87.1 per  cent of the 1971-2000 average
Highest no of wet hrs 9.0 hrs on  the 17
Highest equiv duration 7.2 hrs on  the 17
Total sunshine this month was 66.0 hrs which is 107.8 per  cent of the 1971-2000 average
Equiv. C/S sunshine total was 72.6 hrs which is 107.8 per  cent of the 1971-2000 average
Highest daily sun was 7.3 hrs on  the 25
Maximum  snow depth  was 0.0 cm 1
Mean sea-level pressure at 09Z 1021.5 mbar which is 6.1 mbar compared with the 1961-1990 average
Highest pressure at 09Z 1036.1 mbar on  the 9
Lowest  pressure at 09Z 999.8 mbar on  the 27
Number of days with:
Air Frost 11 0.2mm rain 16 No  sun 5 Snow lying 0
Grnd Frost 13 1.0mm 7 3h  sun 11 Snow/sleet 5
Max < 0ēC 0 5mm 2 6h  sun 3 Hail 0
Max > 10 8 10mm 0 9h  sun 0 Thunder 0
Max > 20 0 25mm 0 12h sun 0 Fog at 09Z 0
Max > 30 0 15h sun 0 Gale 0
Notable events during the month:                
Minimum and maximum on 4th were both new records for the first week of February        
Heavy snow shower at 2045 gmt on the 29th dropped 1cm in 10 minutes