Weather Report for 2021 by Month

January

January 2021 was cooler than average (2.57°C versus an average of 4.04), wetter than average (92.80 mm versus an average total of 42.51) and calmer than average (a wind run of 2554 miles versus an average of 3361).

January was a cold month with an average temperature of only 2.6°C, the second coldest ever here, beaten only by the 1.2°C recorded in 2010. The highest temperature was 10.4°C recorded on the 20th at 09:01. The minimum temperature was -4.8°C, recorded at 07:55, the lowest temperature since -6.7°C was recorded on January 31st 2019. The average daily high temperature was 5.0°C, with the average low daily temperature being 0.0°C, both 1.4°C below the January means.

The warmest day was the 20th with an average temperature of 9.2°C, while the coolest day was the 7th with an average temperature of -1.9°C. There were 16 frost days. On the 24th, the maximum temperature, recorded at 14:00, was only 0.1°C, the lowest daily maximum since -0.7°C was recorded on March 18th 2018. The average wind chill in the month was 1.4°C and the average dew point was 1.5°C. The high dew point was 9.7°C at 19:01 on the 20th. There were 9.6 hours of sunshine in the month, with the sunniest day being the 22nd with 2.98 hours of sun recorded.

Rainfall in the month was 92.8 millimetres recorded on 28 days. The yearly total was 208% of the average for the end of January. The wettest day was the 28th when 16.2 millimetres was recorded. The highest rain rate of 52.2 millimetres per hour was recorded at 22:20 on the 20th. Snow was recorded on 8 days and totalled 82.5 millimetres, the highest snowfall since 108.0 millimetres was recorded in March 2018. On the 23rd, 60 millimetres (2.4 inches) of snow was recorded. This was the most snowfall in one day since 68 millimetres was recorded on March 18th 2018.

The highest barometric pressure of 1030.9 millibars was at 10:37 on the 15th. The lowest pressure was 967.8 millibars at 22:11 on the 20th. The average pressure in the month was 1009.3 millibars. The highest humidity was 100% and the monthly average humidity was 93%. The lowest humidity was 73% at 13:19 on the 22nd.

Wind speeds were lower than average, with the highest wind gust speed of 30 mph being recorded at 02:48 on the 21st. The maximum wind speed was 16 mph at 12:01 on the 11th. The wind run was 2553.9 miles, 1105.7 miles below the January average. The average gust speed in the month was 5.1 mph, and the average wind speed was 3.5 mph. The predominant direction was southerly (170°).

The maximum high solar radiation recorded at 13:07 on the 21st was 438 w/m². The average solar radiation for the month was 25 w/m². The highest U.V. Index was 0.5 recorded at 12:09 on the 25th, the first time a reading above 0.0 has been recorded since December 13th 2020.

Monthly report for January 2021 (pdf)

February

February 2021 was warmer than average (4.70°C versus an average of 4.37), wetter than average (51.20 mm versus an average total of 44.51) and calmer than average (a wind run of 3316 miles versus an average of 3403).

The first half of the month was very cold with frosts recorded on 8 successive nights (7th - 14th). The lowest temperature was -4.1°C, recorded at 01:42 on the 11th. On the 13th, the maximum temperature was only -0.1 °C, the lowest daily maximum since -0.7°C was recorded on March 18th 2018. In the second half of the month, the temperatures recovered drastically, reaching a high of 15.2°C, recorded at 13:18 on the 24th, the highest since 15.7°C was recorded on November 2nd 2020. The average daily high temperature was 7.7°C, with the average low daily temperature being 1.9°C. The monthly average was 4.7°C, 0.3°C above the February mean.

The warmest day was the 24th with an average temperature of 12.9°C. There were 10 frost days in the month. The average wind chill was 3.0°C, and the average dew point was 2.6°C. The sunniest day was the 28th with 6.32 hours and there were 18.65 sunshine hours in the month.

Rainfall in the month was 51.2 millimetres recorded on 19 days. The yearly total was 145.6 millimetres, 162% of the average for the end of February. The wettest day was the 2nd with 14.4 millimetres. The highest rain rate of 19.8 millimetres per hour was recorded at 18:05 on the 16th. Snow was recorded on four days and totalled 47.0 millimetres.

The highest barometric pressure of 1041.5 millibars was at 11:49 on the 27th, the highest since 1041.9 millibars was recorded on March 29th 2020. The lowest pressure was 968.4 millibars at 20:40 on the 2nd. The average pressure in the month was 1012.8 millibars. The highest humidity was 100% and the monthly average humidity was 87%. The lowest humidity was 52% at 14:06 on the 13th.

Wind speeds were lower than average, with the highest wind gust speed of 30 mph being recorded at 17:20 on the 23rd. The maximum wind speed was 15 mph at 17:08 on the 18th. The wind run was 3316.5 miles, 257.2 miles below the February average. The average gust speed in the month was 7.3 mph, and the average wind speed was 5.01 mph. The predominant direction was southerly (169°).

The maximum high solar radiation recorded at 12:15 on the 26th was 724 w/m². The average solar radiation for the month was 56 w/m². The highest U.V. Index was 1.2 recorded at 12:02 on the 28th, the highest since October 14th 2020, when 1.4 was recorded.

Monthly report for February 2021 (pdf)

March

March 2021 was warmer than average (6.86°C versus an average of 5.98), drier than average (35.20 mm versus an average total of 42.80) and calmer than average (a wind run of 3202 miles versus an average of 3315).

The maximum temperature in March was 22.3°C recorded at 16:38, on the 31st. This was the highest temperature ever recorded in March beating the previous high of 21.2°C recorded on March 28th 2012. This was the highest temperature since 23.2°C was recorded on September 22nd 2020. The minimum temperature was -1.4°C recorded at 03:55 on the 7th. The average temperature in the month was 6.9°C, 0.8°C above the mean. The average daily high temperature was 10.7°C (0.7°C above the mean) and the average daily low temperature was 3.2°C (0.5°C above the mean).

The warmest day was the 31st with an average temperature of 15.6°C, 2.6°C warmer than any other day in the month. There were 3 frost days in the month. The sunniest day was the 30th when 8.6 hours was recorded. C

Rainfall in the month was 35.2 millimetres recorded on 14 days. The yearly total was 180.8 millimetres, 138% of the average for the end of March. The wettest day was the 10th with 13.6 millimetres. The highest rain rate of 17.8 millimetres per hour was recorded at 13:06 on the 11th. No snow was recorded.

The highest barometric pressure of 1035.0 millibars was at 08:19 on the 6th. The lowest pressure was 977.8 millibars at 05:05 on the 11th. The average pressure in the month was 1019.1 millibars. The highest humidity was 100% and the monthly average humidity was 83%. The lowest humidity was 45% at 15:31 on the 31st.

Wind speeds were lower than average, with the highest wind gust speed of 32 mph being recorded at 05:03 on the 11th, the highest since a gust of 45 mph was recorded on August 25th 2020. The maximum wind speed was 19 mph at 02:24 on the 11th. The wind run was 3202.5 miles, 338.7 miles below the March average. The average gust speed in the month was 6.2 mph, and the average wind speed was 4.33 mph. The predominant direction was south south-westerly (205°).

The maximum high solar radiation recorded at 12:05 on the 25th was 997 w/m². The average solar radiation for the month was 90 w/m². The highest U.V. Index was 2.7 recorded at 12:02 on the 28th, the highest since September 15th 2020, when 2.8 was recorded.

Monthly report for March 2021 (pdf)

April

April 2021 was cooler than average (6.32°C versus an average of 8.69), drier than average (7.00 mm versus an average total of 34.78) and calmer than average (a wind run of 1964 miles versus an average of 2792).

The month was cold and dry with a number of records broken. At 05:24 on the 7th, the minimum temperature fell to -4.4°C, the lowest temperature ever recorded here in April. This beat the previous April low of -1.9°C set in 2013 and 2017. The maximum temperature in the month was 17.7°C, recorded at 15:00 on the 20th. The monthly avaerage was 6.3°C, the lowest average April temperature ever here. The average daily high temperature was 11.7°C (1.3°C below the mean) and the average daily low temperature was 0.9°C (4.5°C below the mean). This was easily the lowest for April, which was previously 2.8°C set in 2016.

The warmest day was the 20th with an average temperature of 11.2°C, and the coldest day was the 6th with an average temperature of 0.8°C. There were 11 frost days in the month, a record for April. The average wind chill was 5.8°C, and the average dew point was 1.0°C. The sunniest day was the 24th with 10.31 hours and there were 229.74 sunshine hours in the month, a record for April.

Rainfall in the month was 7.0 millimetres recorded on 9 days. The yearly total was 187.8 millimetres, 113% of the average for the end of April. The wettest day was the 27th with 2.4 millimetres. The highest rain rate of 3.0 millimetres per hour was recorded at 23:25 on the 27th. There was 2.5 millimetres of snow recorded in the month.

The highest barometric pressure of 1034.4 millibars was at 10:05 on the 15th. The lowest pressure was 1006.7 millibars at 19:08 on the 27th. The average pressure in the month was 1022.41 millibars, an April high. The highest humidity was 96% and the monthly average humidity was 71%. The lowest humidity was 28% at 13:02 on the 22nd.

Wind speeds were lower than average, with the highest wind gust speed of 28 mph being recorded at 14:19 on the 8th. The maximum wind speed was 16 mph at 14:21 on the 8th. The wind run was 1963.5 miles, a low for the month. The average gust speed in the month was 4.3 mph, and the average wind speed was 2.78 mph. The predominant direction was south easterly (132°).

The maximum high solar radiation recorded at 13:25 on the 3rd was 1079 w/m², the highest of 2021 so far.. The average solar radiation for the month was 166 w/m². The highest U.V. Index was 4.0 recorded at 13:03 on the 25th, the highest since September 8th 2020, when 4.4 was recorded.

Monthly report for April 2021 (pdf)

May

May 2021 was cooler than average (9.67°C versus an average of 11.55), wetter than average (88.00 mm versus an average total of 38.84) and calmer than average (a wind run of 2493 miles versus an average of 2649).

The cold, dry weather of April was replaced by a cold, wet May. The maximum temperature in the month was 21.7°C at 17:47 on the last day of the month. The minimum temperature was -0.1°C at 05:44 on the 6th. The average temperature in the month was 9.7°C, the lowest monthly average for May here. The average daily high temperature was 14.4°C (1.5°C below the mean) and the average daily low temperature was 5.4°C, (1.6°C below the mean). This was the lowest May daily average ever recorded here.

The warmest day was the 29th with an average temperature of 15.3°C, while the coldest day was the 6th with an average temperature of 4.7°C. There was one frost day in the month The sunniest day was the 5th with 10.35 hours of sun. There were 191.1 hours of sun in the month, a low for May.

Rainfall in the month was 88.0 millimetres recorded on 22 days. The yearly total was 275.8 millimetres, 132% of the average for the end of May. The wettest day was the 8th with 14.4 millimetres. The highest rain rate of 87.2 millimetres per hour was recorded at 18:20 on the 26th, the highest of the year so far. There was no snow recorded in the month.

The highest barometric pressure of 1029.1 millibars was at 09:10 on the 30th. The lowest pressure was 985.1 millibars at 01:34 on the 4th. The average pressure in the month was 1007.7 millibars, a low for May. The highest humidity was 99% and the monthly average humidity was 82%. The lowest humidity was 43% at 15:02 on the 2nd.

Wind speeds were lower than average, with the highest wind gust speed of 29 mph being recorded at 17:39 on the 3rd. The maximum wind speed was 14 mph at 13:49 on the 21st. The wind run was 2493.0 miles, 384 mph below the average for the month. The average gust speed in the month was 5.1 mph, and the average wind speed was 3.36 mph. The predominant direction was west north westerly (207°).

The maximum high solar radiation recorded at 12:16 on the 12th was 1194 w/m², the highest of 2021 so far.. The average solar radiation for the month was 175 w/m². The highest U.V. Index was 5.5 recorded at 13:00 on the 31st, the highest since 5.6 was recorded on August 5th 2020.

Monthly report for May 2021 (pdf)