Important environmental information for growing here in Santa Clara county...
Astronomical Solstice/Equinox Dates
2024 Winter Solstice: Sat Dec 21 2024 01:19:54 GMT-0800 (PST)
2025 Vernal Equinox: Thu Mar 20 2025 02:01:03 GMT-0700 (PDT)
2025 Summer Solstice: Fri Jun 20 2025 19:41:49 GMT-0700 (PDT)
2025 Autumnal Equinox: Mon Sep 22 2025 11:19:00 GMT-0700 (PDT)
2025 Winter Solstice: Sun Dec 21 2025 07:02:36 GMT-0800 (PST)
Meteorological Dates
First day of winter 2024: Sun Dec 01 2024
First day of spring 2025: Sat Mar 01 2025
First day of summer 2025: Sun Jun 01 2025
First day of fall 2025: Mon Sep 01 2025
First day of winter 2025: Mon Dec 01 2025
Sun Information
For today, Wednesday January 15 2025
Sunrise: 07:20:37
Sunset: 17:14:14
Transit: 12:17:25
Civil twilight begin: 06:52:17
Civil twilight end: 17:42:34
Nautical twilight begin: 06:20:14
Nautical twilight end: 18:14:37
Astronomical twilight begin: 05:48:56
Astronomical twilight end: 18:45:54
For tomorrow, Thursday January 16 2025
Sunrise: 07:20:15
Sunset: 17:15:16
Transit: 12:17:46
Civil twilight begin: 06:51:59
Civil twilight end: 17:43:33
Nautical twilight begin: 06:19:58
Nautical twilight end: 18:15:33
Astronomical twilight begin: 05:48:43
Astronomical twilight end: 18:46:48
Frost Dates and Growing Period
First frost date (2024): Mon Dec 02 2024
Last frost date (2025): Sun Feb 23 2025
Number of days in the 2025 growing season: 292
Note that frost dates are derived from historical patterns.