Important environmental information for growing here in Santa Clara county...
Astronomical Solstice/Equinox Dates
2020 Vernal Equinox: Thu Mar 19 2020 20:49:35 GMT-0700 (PDT)
2020 Summer Solstice: Sat Jun 20 2020 14:43:02 GMT-0700 (PDT)
2020 Autumnal Equinox: Tue Sep 22 2020 06:30:27 GMT-0700 (PDT)
2020 Winter Solstice: Mon Dec 21 2020 02:02:26 GMT-0800 (PST)
2021 Vernal Equinox: Sat Mar 20 2021 02:37:05 GMT-0700 (PDT)
Meteorological Dates
First day of spring 2020: Sun Mar 01 2020
First day of summer 2020: Mon Jun 01 2020
First day of fall 2020: Tue Sep 01 2020
First day of winter 2020: Tue Dec 01 2020
First day of spring 2021: Mon Mar 01 2021
Sun Information
For today, Saturday March 28 2020
Sunrise: 06:56:43
Sunset: 19:28:04
Transit: 13:12:24
Civil twilight begin: 06:30:35
Civil twilight end: 19:54:12
Nautical twilight begin: 05:59:44
Nautical twilight end: 20:25:03
Astronomical twilight begin: 05:28:11
Astronomical twilight end: 20:56:37
For tomorrow, Sunday March 29 2020
Sunrise: 06:55:13
Sunset: 19:28:58
Transit: 13:12:06
Civil twilight begin: 06:29:03
Civil twilight end: 19:55:08
Nautical twilight begin: 05:58:09
Nautical twilight end: 20:26:02
Astronomical twilight begin: 05:26:30
Astronomical twilight end: 20:57:41
Frost Dates and Growing Period
First frost date (2019): Sun Dec 08 2019
Last frost date (2020): Mon Feb 10 2020
Number of days in the 2020 growing season: 309
Note that frost dates are derived from historical patterns.