Cold and Wet, but also Sunny
Temperatures
The average maximum temperature during April 2022 in Horsholm was 12.1 Celsius, and that was around 0.5 degrees below normal for the time of year. The average minimum temperature was 0.4 Celsius, and that was 2 degrees below the monthly normal.
The highest temperature recorded during the month was 18.6 Celsius on the 21st and on the 22nd a high of 18.1 Celsius was recorded. However, there were only 4 more days with maxima above 15 Celsius. These warmer days were all clustered between the 18th and 23rd. Temperatures rose above 12 Celsius on every day after mid-month, but only 2 days in the first half of April had highs above 12 Celsius, and all maxima between the 1st and 11th inclusive were below 10 Celsius. Only 4 days had highs below 8 Celsius, with 3 of these days, the 1st, 2nd and 8th, having maxima below 7 Celsius. The coldest day was the 2nd with a maximum temperature of 5.2 Celsius.
There were no mild nights during April, and the highest minimum of 7.6 Celsius on the 14th, was the only night when the temperature stayed above 5 Celsius. On 3 other nights, the 7th, 13th and 22nd, the temperature fell to between 4 and 5 Celsius, and a further 3 nights had lows between 2 and 4 Celsius. On many nights, skies were clear and on several occasions (10) the temperature fell to within a degree of freezing, either above or below. On 4 nights it was much colder with minima below minus 3 Celsius. On the 12th a minimum of minus 4.4 Celsius was recorded, but the first 3 nights of the month also had minima of minus 4 Celsius or lower. On both the 1st and 3rd the temperature dipped to minus 5.9 Celsius, the coldest nights of the month.
Frost
There were 13 air frosts during April, and that was 3 more than normal. Frost was fairly evenly distributed through the month with 6 occurring before mid-month, and 7 during the second half of April. The frosts during the latter period were all slight with the lowest temperature minus 2.1 Celsius, this was recorded on the 16th. On 4 consecutive nights, beginning on the 25th, air frosts occurred, but the minimum during this spell was only minus 1.1 Celsius, this occurring on the 28th.
Rain
A total of 44.0 millimetres of rain was measured in April, which was 70% above the monthly average. There were 11 rain days, and that was normal for the month. Although the first 2 days of April were dry, a short unsettled spell produced some heavy precipitation. Daily totals included 14.2 millimetres on the 4th, almost 7 millimetres on the 6th, and 12.2 millimetres on the 7th. In fact, the period between the 3rd and the 8th accounted for almost 90% of the monthly rainfall. Between the 9th and the end of the month, just 4.8 millimetres of rain fell, with the 27th being the only day with more than 1 millimetre of rain falling. On that day, 3.2 millimetres were measured. Not only was it dry during the last 3 weeks of the month, it was also very sunny.
Hail
A soft hail/graupel shower was observed early in the morning on the 5th, and further soft hail showers occurred in the afternoon on the 8th.
Thunder
No thunder was heard in this part of Horsholm.
Snow
A sleet shower occurred early on the 5th, and periods of sleet, then wet snow, occurred in the morning on the 6th, but no settling of snow was observed.
Wind
The wind direction pattern was fairly typical of April with winds from between southwest and northwest accounting for 60% of the daily observations. Southwesterlies were dominant and these also accompanied the windiest days, which were on the 4th, 8th, 9th and 10th. Overall, winds were much lighter than normal, with easterly winds producing the only breezy day during the last 3 weeks of the month.
Fog
No fog was observed in Horsholm during the month.