Climate Boughton North Airfield 2020-2024

Climate and trends: average temperature, flight conditions, precipitation, wind speed and direction.

Calculated from historical METAR data of RAF Marham (EGYM) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	59.8	66	57	64	56	59
February	63.7	49	55	78	71	74
March	64.3	54	48	69	59	80
April	80.0		75	89	82	95
May	79.5		70	91	73	95
June	76.1		72	86	74	76
July	82.5		82	94	65	83
August	81.3		80	89	72	68
September	79.7		77	85	71	79
October	72.6		67	84	71	66
November	60.7		65	57	61	54
December	52.8		48	40	46	45
Average	71.5	55.5	68.4	81.3	68.4	75.7

25th best VFR conditions of United Kingdom

VFR conditions during daylight period

Percentage of observations where the VFR minimums for ceiling and visibility are met: visibility of 8 km or more and a ceiling of 3,000 ft or more. Only observations between sunrise and sunset are taken into account.

Marginal VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	83.1	91	85	84	75	85
February	87.3	79	88	98	87	90
March	86.3	82	73	84	84	97
April	92.0		88	98	96	99
May	92.6		88	98	94	98
June	91.6		94	93	90	91
July	94.3		96	99	85	95
August	93.6		94	97	95	80
September	91.5		91	92	89	91
October	90.1		84	93	94	87
November	80.9		85	75	84	74
December	75.0		77	68	69	63
Average	88.8	83.3	87.8	92.0	88.1	89.3

Marginal VFR conditions or better during daylight period

Percentage of observations where the MVFR minimums for ceiling and visibility are met: visibility of 5 km or more and a ceiling of 1,000 ft or more. Only observations between sunrise and sunset are taken into account.

Maximum temperatures (°C)

Month	Average	2024	2023	2022	2021	2020
January	7.1	8	8	7	5	9
February	9.3	11	10	10	8	10
March	10.7	12	9	12	10	10
April	13.6		13	14	11	16
May	17.1		16	19	15	19
June	20.8		23	21	21	20
July	22.6		21	25	22	21
August	22.2		22	25	20	23
September	19.5		22	19	21	19
October	15.2		16	17	15	14
November	10.5		10	12	10	12
December	7.8		9	5	8	7
Average	14.1	10.0	14.9	15.8	13.8	14.8

24th highest temperature of United Kingdom

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°C)

Month	Average	2024	2023	2022	2021	2020
January	1.1	1	1	1	0	4
February	2.4	4	2	3	2	3
March	3.3	5	2	3	3	3
April	3.9		4	4	1	5
May	7.2		7	8	6	6
June	11.0		12	10	11	11
July	12.8		12	13	13	12
August	11.8		12	8	12	14
September	9.8		12	9	12	9
October	7.7		9	8	8	8
November	4.1		4	5	4	5
December	2.6		4	-2	3	2
Average	6.1	3.3	6.8	6.0	6.2	6.7

16th lowest temperature of United Kingdom

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	14.3	18	16	5	16	12
February	21.4	30	11	21	21	25
March	18.8	21	31	15	20	13
April	11.2		17	6	7	7
May	12.8		12	14	27	2
June	10.7		6	7	13	19
July	14.1		29	5	17	16
August	13.2		12	9	19	15
September	13.6		14	17	11	16
October	19.7		28	11	12	31
November	19.2		24	27	14	15
December	18.7		28	13	19	19
Average	15.8	22.7	18.3	11.5	16.2	15.0

Precipitation during daylight period

Percentage of observations with observed rain, drizzle, snow or hail. Only observations between sunrise and sunset are taken into account.

Wind speed (knots)

Month	Average	2024	2023	2022	2021	2020
January	10.3	11	12	9	9	12
February	12.1	12	10	16	10	17
March	11.2	11	12	9	11	12
April	9.7		10	11	9	9
May	9.0		8	9	10	9
June	9.0		9	9	8	10
July	8.9		11	9	8	10
August	9.3		9	8	10	10
September	9.3		9	9	8	10
October	10.6		9	11	11	11
November	9.8		10	10	9	10
December	10.1		12	7	10	9
Average	10.0	11.3	9.8	9.7	9.2	10.4

24th highest wind speed of United Kingdom

Average wind speed

Excluding wind gusts. Only observations between sunrise and sunset are taken into account.

Prevailing wind direction

Month	2024	2023	2022	2021	2020
January	239°	236°	243°	232°	215°
February	223°	263°	233°	156°	230°
March	183°	223°	109°	255°	224°
April		118°	018°	011°	086°
May		033°	235°	210°	281°
June		070°	214°	001°	211°
July		233°	239°	242°	247°
August		240°	304°	265°	254°
September		194°	295°	207°	270°
October		210°	200°	211°	221°
November		246°	190°	265°	207°
December		226°	271°	221°	198°

Prevailing wind direction

Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.