Important environmental information for growing here in Santa Clara county...
Astronomical Solstice/Equinox Dates
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)
2020 Summer Solstice: Sat Jun 20 2020 14:43:02 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, Monday May 20 2019
Sunrise: 05:54:23
Sunset: 20:14:26
Transit: 13:04:24
Civil twilight begin: 05:24:47
Civil twilight end: 20:44:02
Nautical twilight begin: 04:48:16
Nautical twilight end: 21:20:33
Astronomical twilight begin: 04:08:13
Astronomical twilight end: 22:00:36
For tomorrow, Tuesday May 21 2019
Sunrise: 05:53:43
Sunset: 20:15:14
Transit: 13:04:29
Civil twilight begin: 05:24:03
Civil twilight end: 20:44:54
Nautical twilight begin: 04:47:24
Nautical twilight end: 21:21:33
Astronomical twilight begin: 04:07:09
Astronomical twilight end: 22:01:48
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 2019 growing season: 314
Note that frost dates are derived from historical patterns.