Climate and average weather in Calvillo

Calvillo gets about 711 mm of precipitation a year. On a typical day the chance of rain is some rain, but that rises and falls sharply with the seasons.

The wetter season lasts 4.6 months, from around May 26 to Oct 13, peaking in July at about 65% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Feb 25.

July is the wettest month by volume, with 175 mm over about 19 wet days; April is the driest, with 6 mm.

Over a full year, Calvillo collects about 711 mm of rain across 90 wet days — roughly 59 mm in an average month.

It doesn’t fall evenly. July is the wettest month with 175 mm, while April is the driest at just 6 mm. The three wettest months alone bring about 64% of the year’s total.

In Calvillo, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.

The clearer part of the year begins around October 19 and lasts for 7.8 months, ending around June 13. The clearest month is March, when the sky is clear, mostly clear, or partly cloudy 75% of the time on average.

The cloudier part of the year begins around June 14 and lasts for 4.2 months, ending around October 18. The cloudiest month is September, when it is overcast or mostly cloudy 56% of the time.

Calvillo averages about 14 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 6 and 20 days.

The sunnier stretch runs 7.5 months, from around Oct 19 to Jun 4. The sunniest month is February, with roughly 18 sunny days (bright).

The greyest month is September, down near 7 sunny days — about 64% fewer than the February peak.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

In Calvillo, the air stays dry or comfortable essentially all year. Even in June, the muggiest month, it feels humid or worse only about 14% of the time — humidity is not something you need to plan around here.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Wind in Calvillo is steady company: average speeds sit near 6 km/h — calm — in every month of the year, with no meaningful windy or calm season.