Posted by: senorwx | July 29, 2015

Rain Update – July 29

As my July posting went on line last night, the rain started gently coming down on San Pancho.

An inch and a half of it, bringing the monthly total to nearly 7 inches, the average for July rainfall amounts. What the San Pancho Weather Station couldn’t record was the spectacular and local lightning and thunder show, certainly the biggest of the season.

Most of the rain fell between 4 and 5 a.m., at one point coming down at 6.5 inches per hour.

Now that’s my kind of rain. It’s a leak-finder rain. If you thought you had all of the leaks in your apartment or home fixed, this is the kind of storm that will find one (or two or three) more!

Posted by: senorwx | July 29, 2015

Heat Index hits 117 in July

There’s no question its been hot (a lot) this month in San Pancho here on the beautiful Riviera Nayarit. But thank goodness for the Pacific and the backyard pool. Not to mention air conditioning.

July 25th we reached 117 degrees F, the second highest reading on record at the San Pancho Weather Station. It reached 116.5 the next day. The all-time highest heat index mark is 119.6 F reached last…you guessed it…July.

To put this mucho calor in proper perspective, the Heat Index has been higher than 100 F every day this month so far, except one. On July 20 it dipped way down to 98.9 F. To those unfamiliar with the heat index, here’s the story from the “Definitions” page of the San Pancho site:

The Heat Index is an apparent temperature reading which uses temperature and the relative humidity to determine how hot the air actually feels. When humidity is low, the apparent temperature will be lower than the air temperature, since perspiration evaporates rapidly to cool the body. However, when humidity is high (i.e., the air is more saturated with water vapor) the apparent temperature feels higher than the actual air temperature, because perspiration evaporates more slowly.

Think of the Heat Index as the counterpart of the Wind Chill index which us Northerners know all too well. It’s a combination of the actual air temperature combined with the speed of the wind that is blowing across your skin, which makes it feel much colder.

As of the 28th we are below the average July rainfall of 8 inches with only 5 inches on record. Last year we only had 4 inches in July, so this would make two July’s in a row with minimal rainfall. Conclusions to be drawn? I leave that to you.

While we expats try to deal with the heat by drinking a lot of water, reading, eating, chatting, venturing to the beach,etc., one really has to admire the Mexicans and their work ethic. The building, fixing, painting, cleaning projects go on daily as though the temperatures were 20 degrees cooler. With temperatures in this range the old “you get used to it” conventional wisdom just doesn’t cut it. The workers here are dedicated and have incredible stamina.

Posted by: senorwx | June 30, 2015

June Was Hot in San Pancho. But Unusually Hot? Not.

This is the hottest June San Francisco, Nayarit, has on record! Not.

Where’s the rain? We usually get a lot of rain every June in San Pancho. Not.

Nope. Both statements above are not true. I’d agree with you if you’re just sayin’ it felt that way!

Let’s start with how hot it has been feeling here in our village by the Pacific. Compare the temperatures F. for this year/last year, 2015/2014:

High temp: 93.5 / 94.2

Low temp: 75.2 / 74.3

Average monthly temp: 83.2 / 83.4

So June 2015 is just about the same as June 2014. But here’s the difference: compared to every other June from 2008 to 2013, this year and last are the two warmest on record. That average monthly temperature, an average of all the hours of the entire month (not a temperature we ever actually experienced), but that average is usually around 70 degrees, not 74 or 75.

The same pattern holds true for the Heat Index (some call it the Humidex, a “feels like” reading much like the wind chill reading).

Here’s the comparison for last year/this year, 2015/2014 for the Heat Index:

High Heat Index: 114.9 / 114.0

Average monthly heat index: 91.4 / 92.3

The high heat index for every other June on record is around 102. And the average monthly heat index for years previous to 2014 is 84. There’s no doubt about it, this June in San Pancho was feeling very hot, very humid…more than any year except last year.

So if this year was the same as last for temperatures and the heat index, why don’t we remember things that way? The missing ingredient here is rain. Once you add that factor, you’ll realize why we don’t remember how how last June was. It was a very rainy June.

We here at the San Pancho Weather Station track how many days of measurable rainfall we have. The number of days with rain for all the June months on record since 2008 is 10. This June it was 7 days with at least a trace of rain. In 2014 it was 17. That’s second only to the 18 days of rain back in 2008.

Total rainfall this June was 4.85 inches, all in the early part of the month. In 2014, with 17 days of rain we had 11.84 inches of rain!

July promises a double-digit number of days with rain and a rainfall amount sure to exceed the five inches of June.

Distracted by the rain last year, we forgot the hot. Providing further proof of the old axiom that we can always find something to complain about when it comes to the weather. And that’s OK. Mother Nature doesn’t take it personally.

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