Rather Cold and Dry

Temperatures

The average maximum temperature during April 2020 in Horsholm was 13.3 Celsius, and that was around normal for the time of year. The average minimum temperature was 1.9 Celsius, and that over a degree below the April normal.

The highest temperature recorded during the month was 20.2 Celsius on the 23rd, and on the 22nd the temperature reached 19.3 Celsius. There were, however, only 3 other days when the temperature exceeded 16 Celsius, the 12th, 20th and 21st, although on each of these days the maximum was above 17 Celsius. On many days (14) the maxima were between 12 and 15 Celsius, but there were a few cool days. On 6 occasions the temperature failed to rise above 10 Celsius. and on 3 of these cooler days the temperature stayed below 9 Celsius. The high on the 3rd was 8.5 Celsius, with 8.2 Celsius recorded on the 13th and 8.3 Celsius on the 29th.

There were no mild nights during April. In fact, the minimum of 7.6 Celsius on the 12th, was 1 of only 3 nights with minima above 5 Celsius. The others were the 15th, with a low of 6.2 Celsius, and the 24th, when 6.3 Celsius was recorded. On most nights (17), the minimum temperature was between 0 and 4 Celsius, but there were several colder nights, and on the 18th a minimum of minus 3.0 Celsius occurred.

Frost

Air frost occurred on 8 nights during April. Normally 9 frosts can be expected. The frosts were clustered in 2 groups, between the 8th and 11th, and from the 17th and 22nd, with each of these 2 groups having 1 frost-free night. Apart from on the 18th, all the frosts were slight, with the second coldest night of the month, the 11th, having a minimum of minus 1.8 Celsius, and with 5 of these frosty nights having minimum temperatures above minus 1.0 Celsius. 

Rain

There were only 20.4 millimetres of rain during April, and that was around 70% of average. Rain fell on 10 days, and that was near average, and wet days, when 1 millimetre or more of rain was measured, amounted to 6, and that was also close to average. The first 2 days of the month had rain, but this only amounted to 3.4 millimetres. Thereafter, just 1.2 millimetres of rain fell during the following 21 days. The last week of April became unsettled with rain recorded on 6 out of the last 7 days of the month. Most of the rain was light, but 3.8 millimetres were measured on the 24th, and 7.6 millimetres on the 30th, the wettest day of the month.

Hail

No hail was observed in this part of Horsholm

Thunder

There was thunder very late on the evening of the 24th, this rumbling on until after midnight.

Snow

No sleet or snow was observed in this part of Horsholm.

Wind

The wind during April was mainly from the northwest, with a few days of breezes from between southeast and southwest, these mainly occurring at either end of the month. Winds from the southwest were particularly strong on the 2nd, and the 3rd was also a windy day. There were fresh, and cold, northwesterly winds during the second week of April, and the last 2 days of the month had cold, brisk winds from east to southeast.  

Fog

No fog was observed in this part of Horsholm.

Reporting Station	Highest Temp.	Lowest Temp.	Rain Total (mm)	Wettest	Rain Days
Horsholm	20.2	-3.0	20	8	10
Copenhagen A/p	20.2	-0.5	18	11	8
Roskilde A/p	20.7	-1.7	23	12	8