Important environmental information for growing here in Santa Clara county...
Astronomical Solstice/Equinox Dates
2019 Vernal Equinox: Wed Mar 20 2019 14:58:05 GMT-0700 (PDT)
2019 Summer Solstice: Fri Jun 21 2019 08:53:44 GMT-0700 (PDT)
2019 Autumnal Equinox: Mon Sep 23 2019 00:49:29 GMT-0700 (PDT)
2019 Winter Solstice: Sat Dec 21 2019 20:18:56 GMT-0800 (PST)
2020 Vernal Equinox: Thu Mar 19 2020 20:49:35 GMT-0700 (PDT)
Meteorological Dates
First day of spring 2019: Fri Mar 01 2019
First day of summer 2019: Sat Jun 01 2019
First day of fall 2019: Sun Sep 01 2019
First day of winter 2019: Sun Dec 01 2019
First day of spring 2020: Sun Mar 01 2020
Sun Information
For today, Wednesday March 20 2019
Sunrise: 07:09:53
Sunset: 19:20:11
Transit: 13:15:02
Civil twilight begin: 06:43:56
Civil twilight end: 19:46:08
Nautical twilight begin: 06:13:29
Nautical twilight end: 20:16:35
Astronomical twilight begin: 05:42:35
Astronomical twilight end: 20:47:29
For tomorrow, Thursday March 21 2019
Sunrise: 07:08:22
Sunset: 19:21:05
Transit: 13:14:44
Civil twilight begin: 06:42:24
Civil twilight end: 19:47:03
Nautical twilight begin: 06:11:55
Nautical twilight end: 20:17:32
Astronomical twilight begin: 05:40:58
Astronomical twilight end: 20:48:30
Frost Dates and Growing Period
First frost date (2018): Mon Dec 03 2018
Last frost date (2019): Mon Jan 28 2019
Number of days in the 2019 growing season: 314
Note that frost dates are derived from historical patterns.