Meteorological Spring is the calendar months of March, April and May. Astronomically speaking Spring starts today. The Sun will be directly over the equator at 9:15 this morning Tucson time. You might feel a little dizzy. Dogs may be barking. If you are doing the dishes you might drop and break one. 🙂 Of course none of that is true… except the Vernal Equinox is at 9:15. Equinox meaning equal night (Latin). In a perfectly spherically shaped world with no atmosphere we would have exactly 12 hours of daylight and 12 hours of nighty night across the entire planet. But, the atmosphere actually bends the incoming  sunlight so the Sun appears to rise a few minutes before it actually does and appears to set a few minutes after it actually does. Throws the whole Equinox off a bit, but it’s still close.

The first day of Spring in Tucson looks pretty outstanding! Lots of sunshine today with a high near 80.

Mostly clear skies tonight with a low near 50.

High pressure continues to flex the next couple of days. Sunny tomorrow 84ish. High clouds moving in Wednesday through Friday. Thursday the warmest day of the week despite the cloud cover with a high near the record of 90. Cooler Friday as a system misses us to the north near 80. Mostly sunny Saturday upper 70s. Mid 70s Sunday and Monday. Enjoy!