| Month | Day and Species | Early / Median ▲ / Late for 2007-25* and 2022 ⦿ |
|---|---|---|
| January | 1st Peacock* UK First | 1 Jan
1 Jan 13
5 Feb 21
|
| 1st Red Admiral* UK First | 1 Jan
1 Jan 07
24 Jan 21
| |
| 2nd Small Tortoiseshell | 2 Jan
1 Jan 13
3 Mar 11
| |
| 13th Brimstone | 13 Jan
2 Jan 14
5 Mar 13
| |
| February | 28th Comma | 28 Feb
2 Jan 14
15 Mar 10
|
| 28th Small White | 28 Feb
11 Feb 09
8 Apr 10
| |
| March | 10th Holly Blue* UK First | 10 Mar
10 Feb 22
23 Apr 13
|
| 17th Orange-tip* UK First | 17 Mar
17 Feb 22
20 Apr 13
| |
| 18th Green-veined White* UK First | 18 Mar
18 Feb 22
20 Apr 13
| |
| 19th Large Tortoiseshell | 19 Mar
19 Feb 22
14 Jul 08
| |
| 21st Clouded Yellow* UK First | 21 Mar
21 Mar 22
23 Jul 12
| |
| 22nd Speckled Wood | 22 Mar
7 Feb 23
6 Apr 15
| |
| 24th Large White* UK First | 24 Mar
6 Mar 25
15 Apr 08
| |
| April | 10th Dingy Skipper* UK First | 10 Apr
6 Apr 12
6 May 13
|
| 10th Grizzled Skipper | 10 Apr
24 Mar 12
29 Apr 23
| |
| 10th Small Copper | 10 Apr
30 Mar 19
15 May 13
| |
| 10th Painted Lady | 10 Apr
1 Jan 13
6 May 08
| |
| 13th Green Hairstreak | 13 Apr
30 Mar 19
3 May 13
| |
| 14th Small Heath* UK First | 14 Apr
6 Apr 12
16 May 13
| |
| 14th Wall | 14 Apr
29 Mar 14
22 May 13
| |
| 20th Pearl-bordered Fritillary | 20 Apr
11 Apr 25
6 May 13
| |
| 20th Duke of Burgundy | 20 Apr
16 Apr 07
7 May 21
| |
| 21st Brown Argus* UK First | 21 Apr
21 Apr 22
29 May 13
| |
| 24th Common Blue | 24 Apr
17 Apr 25
22 May 13
| |
| 26th Small Blue | 26 Apr
26 Apr 22
22 May 13
| |
| 30th Adonis Blue | 30 Apr
24 Apr 07
23 May 13
| |
| May | 14th Wood White | 14 May
26 Apr 09
29 May 24
|
| 16th Small Pearl-bordered Fritillary | 16 May
28 Apr 11
3 Jun 23
| |
| 16th Meadow Brown* UK First | 16 May
8 May 25
19 Jun 13
| |
| 17th Large Skipper* UK First | 17 May
8 May 11
14 Jun 13
| |
| 30th Dark Green Fritillary* UK First | 30 May
30 May 22
21 Jun 24
| |
| June | 3rd Black Hairstreak | 3 Jun
21 May 19
13 Jun 21
|
| 3rd Silver-studded Blue | 3 Jun
26 May 11
19 Jun 13
| |
| 9th Marbled White | 9 Jun
2 Jun 25
30 Jun 13
| |
| 10th Small Skipper | 10 Jun
19 May 11
3 Jul 13
| |
| 11th Silver-washed Fritillary | 11 Jun
4 Jun 11
6 Jul 13
| |
| 11th White Admiral | 11 Jun
2 Jun 11
29 Jun 13
| |
| 13th Ringlet | 13 Jun
3 Jun 19
29 Jun 13
| |
| 15th White-letter Hairstreak | 15 Jun
2 Jun 25
10 Jul 13
| |
| 17th Purple Emperor* UK First | 17 Jun
15 Jun 17
10 Jul 13
| |
| 19th Purple Hairstreak | 19 Jun
15 May 11
10 Jul 13
| |
| 21st Gatekeeper | 21 Jun
30 May 11
9 Jul 13
| |
| 22nd Essex Skipper | 22 Jun
14 Jun 11
14 Jul 13
| |
| 24th Chalk Hill Blue | 24 Jun
24 Jun 22
16 Jul 15
| |
| July | 2nd Brown Hairstreak* UK First | 2 Jul
2 Jul 22
5 Aug 12
|
| 10th Grayling | 10 Jul
9 Jul 09
26 Jul 13
| |
| 15th Silver-spotted Skipper | 15 Jul
6 Jul 23
26 Jul 13
| |
| 19th Swallowtail | 19 Jul
7 May 18
22 Aug 09
| |
| 27th Long-tailed Blue | 27 Jul
6 Jan 19
5 Aug 24
|
*National first / *Ex 2020 (Covid/lockdown)
