Belmullet 1971–2000 averages
TEMPERATURE (degrees Celsius)	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
mean daily max	8.6	8.8	9.9	11.8	14.1	15.7	17.4	17.7	16.1	13.4	10.7	9.2	12.8
mean daily min	3.5	3.4	4.4	5.4	7.5	9.9	11.9	11.8	10.4	8.2	5.5	4.4	7.2
mean temperature	6.0	6.1	7.2	8.6	10.8	12.8	14.7	14.8	13.2	10.8	8.1	6.8	10.0
absolute max.	13.9	13.8	14.7	23.3	26.6	27.0	28.7	27.4	25.4	21.3	15.3	14.9	28.7
min. maximum	-1.1	0.7	3.1	5.9	6.7	11.3	11.9	12.1	10.8	8.1	5.2	0.7	-1.1
max. minimum	10.7	11.0	10.5	11.2	15.3	16.2	18.0	17.6	16.8	14.7	13.1	12.3	18.0
absolute min.	-8.1	-5.4	-5.7	-2.1	-0.4	1.4	5.1	3.1	0.8	-1.7	-2.5	-5.5	-8.1
mean num. of days with air frost	3.8	3.6	1.3	0.6	0.0	0.0	0.0	0.0	0.0	0.1	1.3	2.9	13.6
mean num. of days with ground frost	9.9	8.7	6.5	5.5	2.2	0.1	0.0	0.0	0.5	1.8	5.9	8.2	49.4
mean 5cm soil	4.4	4.3	5.7	8.5	11.9	14.8	15.8	15.2	12.9	10.1	6.8	5.6	9.7
mean 10cm soil	4.8	4.7	5.9	8.2	11.2	14.0	15.2	14.9	12.9	10.4	7.3	6.0	9.6
mean 20cm soil	5.5	5.4	6.6	8.9	11.7	14.4	15.6	15.5	13.8	11.3	8.2	6.6	10.3
RELATIVE HUMIDITY (%)
mean at 0900UTC	84.8	84.6	82.7	80.2	78.0	80.9	84.8	84.3	83.7	84.8	85.2	85.6	83.3
mean at 1500UTC	80.6	78.3	76.7	73.3	72.8	77.0	79.7	78.3	77.3	79.3	81.1	83.3	78.2
SUNSHINE (hours)
mean daily duration	1.3	2.1	2.9	5.0	6.0	5.0	4.2	4.5	3.8	2.6	1.6	1.0	3.3
greatest daily duration	7.9	9.6	11.5	13.7	15.5	15.9	15.4	13.9	11.9	9.5	8.1	6.7	15.9
mean num. of days with no sun	11.1	6.6	6.2	3.0	2.0	3.1	3.4	3.1	3.5	6.0	8.5	11.9	68.6
RAINFALL (mm)
mean monthly total	133.2	95.1	99.4	62.8	64.7	67.4	71.2	99.6	101.1	139.0	131.6	132.7	1197.8
greatest daily total	32.6	23.6	25.6	24.5	42.2	37.1	29.0	57.8	62.6	79.6	43.6	41.7	79.6
mean num. of days with >= 0.2mm	23	20	22	17	17	17	18	19	20	23	23	24	243
mean num. of days with >= 1.0mm	19	16	18	12	12	12	13	14	15	18	19	19	187
mean num. of days with >= 5.0mm	10	7	7	4	4	4	4	6	6	9	9	9	79
WIND (knots)
mean monthly speed	15.4	14.6	14.2	12.4	12.0	11.8	11.5	11.2	12.7	14.0	13.8	14.6	13.2
max. gust	90	93	88	66	61	55	67	54	84	79	76	93	93
max. mean 10-minute speed	55	60	58	43	41	38	45	40	56	58	48	60	60
mean num. of days with gales	6.6	4.6	3.0	1.3	0.7	0.2	0.1	0.5	1.8	3.0	3.7	5.0	30.5
WEATHER (mean no. of days with..)
snow or sleet	5.1	4.2	3.5	1.6	0.2	0.0	0.0	0.0	0.0	0.0	0.6	2.7	18.0
snow lying at 0900UTC	0.6	0.2	0.3	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.4	1.5
hail	9.5	7.0	7.3	4.6	1.7	0.2	0.0	0.1	0.6	2.9	6.2	7.5	47.7
thunder	1.0	0.8	0.6	0.4	0.4	0.4	0.7	0.5	0.2	0.4	0.3	0.8	6.5
fog	1.1	0.7	0.9	1.7	1.6	1.7	3.1	1.9	1.0	1.0	0.7	0.6	16.0