DATE

MAX TEMP

MIN TEMP

MEAN TEMP

RAINFALL 24 HOURS TO 9AM

HUMIDITY

9AM

PRESSURE

9AM

SNOW COVER 9AM

CONDITIONS

1/4/2004

11.4c

5.2c

8.3c

3mm

100%

1009hpa

No

Cloudy, with showers

2/4/2004

13.4c

7.2c

10.3c

1mm

100%

1006hpa

No

Showers, bright spells

3/4/2004

12.3c

5.0c

8.6c

9mm

100%

1007hpa

No

Showers, bright spells

4/4/2004

10.5c

5.2c

7.8c

3mm

76%

1007hpa

No

Mostly cloudy

5/4/2004

9.9c

4.3c

7.1c

0

78%

1005hpa

No

Sunny spells, windy

6/4/2004

8.9c

3.1c

6.0c

0

68%

1005hpa

No

Spells of rain

7/4/2004

7.9c

3.4c

5.6c

4mm

79%

1015hpa

No

Mostly cloudy

8/4/2004

8.9c

2.6c

5.7c

0

71%

1022hpa

No

Sunny intervals

9/4/2004

12.5c

-0.3c

6.1c

0

90%

1020hpa

No

Cloudy

10/4/2004

10.0c

6.4c

8.2c

0

86%

1022hpa

No

Cloudy

11/4/2004

14.4c

5.9c

10.1c

0

88%

1024hpa

No

Cloudy, sunny afternoon

12/4/2004

13.9c

7.7c

10.8c

0

80%

1027hpa

No

Cloudy

13/4/2004

16.8c

3.3c

10.0c

0

79%

1026hpa

No

Sunny

14/4/2004

13.2c

7.7c

10.4c

0

95%

1019hpa

No

Cloudy

15/4/2004

16.5c

5.7c

11.1c

0

84%

1013hpa

No

Sunny intervals

16/4/2004

9.8c

6.5c

8.1c

4mm

97%

1014hpa

No

Rain

17/4/2004

11.8c

7.0c

9.4c

6mm

100%

1004hpa

No

Cloudy, showers

18/4/2004

10.6c

5.8c

8.2c

2mm

100%

979hpa

No

Early rain then cloudy

19/4/2004

13.0c

4.9c

8.9c

29mm

80%

984hpa

No

Rain, then bright

20/4/2004

14.9c

2.4c

8.6c

0

85%

1001hpa

No

Sunny intervals

21/4/2004

13.4c

7.1c

10.2c

0

100%

1002hpa

No

Cloudy, bright spells

22/4/2004

14.7c

7.0c

10.8c

5mm

77%

1012hpa

No

Sunny, breezy

23/4/2004

15.0c

4.7c

9.8c

0

84%

1024hpa

No

Cloudy

24/4/2004

19.4c

9.8c

14.6c

0

83%

1028hpa

No

Sunny

25/4/2004

20.9c

10.0c

15.4c

0

82%

1027hpa

No

Sunny

26/4/2004

17.0c

10.7c

13.8c

0

83%

1023hpa

No

Cloudy

27/4/2004

10.7c

9.9c

10.3c

0

80%

1017hpa

No

Rain

28/4/2004

8.5c

8.1c

8.3c

6mm

96%

1018hpa

No

Cloudy, cold

29/4/2004

9.3c

5.9c

7.6c

1mm

96%

1008hpa

No

Cloudy, cold

30/4/2004

9.7c

7.0c

8.3c

0

90%

1009hpa

No

Cloudy

 

 

 

AVERAGE

MAX

AVERAGE

MIN

MEAN

TEMP

HIGHEST

MAX

LOWEST

MIN

MONTHLY

RAINFALL

RAIN

DAYS

>1mm

SNOW COVER

DAYS

DAYS BELOW 0c

DAYS ABOVE 20c

AVERAGE PRESSURE 9AM

AVERAGE HUMIDITY 9AM

12.6C

(54.7F)

6.0C

(42.8F)

9.3C

(48.7F)

20.9C (69.6F)

25th

-0.3C

(31.5F)

9th

73mm

12

0

1

1

1013.2hpa

86.9%

 

Review of April 2004

 

Quite a varied month, as spring months usually are. Notable events included a thunderstorm on the evening of the 2nd, which dropped 9mm of rain, a very wet 24 hours leading up to 0900 on the 19th, with 29mm of rain recorded, a high of 20.9C (69.6F) on the 25th, and a minimum of –0.3C (31.5F) on the 9th, unusually the only day of air frost this month.

 

According to the Durham 1971-2000 averages, which are representative for this area, you would expect 4.3 days of air frost, compared to this months one solitary day. It was a wetter than average April with 73mm of rain and 12 days of rain >1mm recorded. Quite a bit higher than the 1971-2000 average which is 52mm of rain and 9.7 days rain >1mm. Once again it has been milder than average, a mean temperature of 9.3C, which is 2.1C above the average of 7.2C. Again, as seems to be the theme for this year so far, the high mean temperature had a great deal to do with the high night time minimum temperatures, running out at 6.0C this month, well above the average of 3.3C. Daytime maximums averaged 12.6C, which is 1.3C above the expected 11.3C.

 

In summary, a very mild and wet month, perfect growing weather for the vegetation. In fact, this month could have been exceptional for April, had it not been for the cold, dull last 4 days of the month.