Belmullet 1991–2020 averages
TEMPERATURE (degrees Celsius)	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
mean daily max	8.9	9.2	10.5	12.2	14.6	16.3	17.6	17.7	16.5	13.8	11	9.2	13.1
mean daily min	3.9	3.9	4.9	6	8.2	10.6	12.3	12.4	11	8.7	6.3	4.6	7.7
mean temperature	6.4	6.5	7.7	9.1	11.4	13.5	14.9	15	13.7	11.2	8.7	6.9	10.4
absolute max.	13.7	15.6	22.2	23.9	26.3	27.2	29.9	27.7	25	21	16.2	14.6	29.9
min. maximum	1.7	2.3	1.5	5.3	8.9	11.1	12.3	13.2	12	7	3.2	0.6	0.6
max. minimum	10.4	11	11	11.9	15.6	16.4	19.1	17.6	16.5	15.4	13.8	12.3	19.1
absolute min.	-5.9	-4.1	-4.9	-2.1	0.5	3.5	5.6	5.2	3.1	-1.7	-4.6	-7.8	-7.8
mean num. of days with air frost	3.1	2.9	1.2	0.3	0	0	0	0	0	0	0.5	2.4	10.4
mean num. of days with ground frost	9.4	8.8	6.7	4	1.5	0	0	0	0	1.4	4.5	8.7	45.1
mean 5cm soil	5	5	6.4	9.4	13.1	15.8	16.9	16.2	13.6	10.3	7.4	5.5	10.4
mean 10cm soil	5.4	5.5	6.6	9.1	12.4	15.1	16.3	15.9	13.8	10.7	8	6	10.4
mean 20cm soil	5.9	6.2	7.4	9.8	12.9	15.5	16.8	16.6	14.7	11.7	8.8	6.7	11.1
RELATIVE HUMIDITY (%)
mean at 0900UTC	86.6	86.5	84.1	80.7	78.7	80.7	83.9	83.9	84.4	85.4	85.9	86.6	83.9
mean at 1500UTC	82.4	80	76.2	73.5	72.8	76.2	78.5	78.1	77.5	79.2	82.3	83.9	78.4
SUNSHINE (hours)
mean daily duration	1.4	2.4	3.5	5.3	6.3	5.6	4.4	4.6	4	3	1.7	1.2	3.6
greatest daily duration	8.3	10	11.9	14.1	15.5	15.9	15.5	13.9	12.6	11	8.6	7.2	15.9
mean num. of days with no sun	9.5	6	5.3	2.5	2	2.4	2.7	2.8	3.3	5.4	7.7	10.4	60
RAINFALL (mm)
mean monthly total	136.9	109.9	90.6	74	70.8	73	85.9	100.5	102.6	131.2	139.6	126.6	1241.6
greatest daily total	44.3	31.3	29.0	25.9	36.3	38.9	33.2	49.5	57.0	40.0	43.0	34.4	57.0
mean num. of days with >= 0.2mm	24.4	21.7	21.5	18.8	18.1	17.8	21.1	21.2	20.8	23.2	24.7	24.2	257.5
mean num. of days with >= 1.0mm	20.1	17.8	16.7	13.8	13.2	12.4	14.9	15.8	15.8	18.7	21	20.7	200.9
mean num. of days with >= 5.0mm	10.2	8.8	6.7	5.3	4.8	4.8	6.1	6.6	6.7	9.1	10.1	9.9	89.1
WIND (knots)
mean monthly speed	14.8	14.2	13.2	12.1	11.6	11.2	10.7	10.9	11.7	12.5	13	14.2	12.5
max. gust	94	82	74	75	78	63	62	56	73	71	80	93	94
max. mean 10-minute speed	54	53	50	44	46	45	37	40	50	49	47	59	59
mean num. of days with gales	6.3	4	2.6	1.4	0.8	0.3	0.1	0.3	1.2	2	2.7	4.7	26.5