Important environmental information for growing here in Santa Clara county...
Astronomical Solstice/Equinox Dates
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)
2022 Autumnal Equinox: Thu Sep 22 2022 18:03:41 GMT-0700 (PDT)
Meteorological Dates
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
First day of fall 2022: Thu Sep 01 2022
Sun Information
For today, Tuesday September 21 2021
Sunrise: 06:55:56
Sunset: 19:04:52
Transit: 13:00:24
Civil twilight begin: 06:29:59
Civil twilight end: 19:30:49
Nautical twilight begin: 05:59:33
Nautical twilight end: 20:01:15
Astronomical twilight begin: 05:28:41
Astronomical twilight end: 20:32:07
For tomorrow, Wednesday September 22 2021
Sunrise: 06:56:46
Sunset: 19:03:20
Transit: 13:00:03
Civil twilight begin: 06:30:50
Civil twilight end: 19:29:16
Nautical twilight begin: 06:00:26
Nautical twilight end: 19:59:40
Astronomical twilight begin: 05:29:37
Astronomical twilight end: 20:30:29
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.