Important environmental information for growing here in Santa Clara county...
Astronomical Solstice/Equinox Dates
2021 Summer Solstice: Sun Jun 20 2021 20:31:32 GMT-0700 (PDT)
2021 Autumnal Equinox: Wed Sep 22 2021 12:20:30 GMT-0700 (PDT)
2021 Winter Solstice: Tue Dec 21 2021 07:58:54 GMT-0800 (PST)
2022 Vernal Equinox: Sun Mar 20 2022 08:32:53 GMT-0700 (PDT)
2022 Summer Solstice: Tue Jun 21 2022 02:13:18 GMT-0700 (PDT)
Meteorological Dates
First day of summer 2021: Tue Jun 01 2021
First day of fall 2021: Wed Sep 01 2021
First day of winter 2021: Wed Dec 01 2021
First day of spring 2022: Tue Mar 01 2022
First day of summer 2022: Wed Jun 01 2022
Sun Information
For today, Wednesday June 16 2021
Sunrise: 05:46:46
Sunset: 20:30:53
Transit: 13:08:50
Civil twilight begin: 05:15:47
Civil twilight end: 21:01:53
Nautical twilight begin: 04:36:58
Nautical twilight end: 21:40:42
Astronomical twilight begin: 03:53:09
Astronomical twilight end: 22:24:30
For tomorrow, Thursday June 17 2021
Sunrise: 05:46:55
Sunset: 20:31:11
Transit: 13:09:03
Civil twilight begin: 05:15:55
Civil twilight end: 21:02:11
Nautical twilight begin: 04:37:05
Nautical twilight end: 21:41:01
Astronomical twilight begin: 03:53:14
Astronomical twilight end: 22:24:52
Frost Dates and Growing Period
First frost date (2021): Wed Dec 15 2021
Last frost date (2022): Fri Feb 25 2022
Number of days in the 2021 growing season: 292
Note that frost dates are derived from historical patterns.