For the 2026–2027 school year, the district serves 324 students across 2 schools in Harris County, Texas. Classes begin Aug 11 and end May 28. All dates listed below are sourced from the district's official publications. Verify with Calvin Nelms Charter Schools before scheduling around them.
🏫
Is school open today?
—
Visual Calendar
Official Calendar Images
Official calendar scans for Calvin Nelms Charter Schools. Click any page to open the full-size image.
2026–2027
School Calendar
Interactive Calendar
Calvin Nelms Charter Schools's 2026–2027 academic calendar — holidays, breaks, and key dates.
2026–2027
📅
Current status
—
🎒
School returns
—
🍎
Upcoming teacher / no-school days
—
Month by Month Calendar
—
weekdays off across the year
—
of those are one-off days needing cover
—
longest break
Planning a trip?
Pick your dates and see how many school days would be missed.
School Day
Holiday / No School
Break
Teacher Day
Early Release
First / Last Day
AUGUST 202614 days
SunMonTueWedThuFriSat
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Teacher In-Service
Aug 3 — Aug 7
Teacher In-Service / Meet the Teacher
Aug 10
1st Grading Period Begins / First Day of School
Aug 11
SEPTEMBER 202619 days
SunMonTueWedThuFriSat
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Labor Day
Sep 7
1st Grading Period Ends
Sep 18
2nd Grading Period Begins
Sep 21
OCTOBER 202617 days
SunMonTueWedThuFriSat
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Fall Break
Oct 12 — Oct 16
NOVEMBER 202613 days
SunMonTueWedThuFriSat
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
2nd Grading Period Ends
Nov 6
3rd Grading Period Begins
Nov 9
Early Release
Nov 20
Thanksgiving Break
Nov 23 — Nov 27
DECEMBER 202612 days
SunMonTueWedThuFriSat
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Early Release
Dec 17
3rd Grading Period Ends / Early Release
Dec 18
Winter Break
Dec 21 — Dec 31
JANUARY 202718 days
SunMonTueWedThuFriSat
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Winter Break Holiday
Jan 1
4th Grading Period Begins
Jan 4
Martin Luther King Jr. Day
Jan 18
FEBRUARY 202718 days
SunMonTueWedThuFriSat
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
4th Grading Period Ends
Feb 12
Bad Weather Make-Up Day
Feb 15
5th Grading Period Begins
Feb 16
MARCH 202717 days
SunMonTueWedThuFriSat
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Spring Break
Mar 15 — Mar 19
Early Release / Bad Weather Make-Up Day
Mar 26
APRIL 202720 days
SunMonTueWedThuFriSat
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
5th Grading Period Ends
Apr 9
6th Grading Period Begins
Apr 12
MAY 202718 days
SunMonTueWedThuFriSat
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Early Release
May 27
Last Day of School / 6th Grading Period Ends / Graduation
May 28
Memorial Day
May 31
Key Dates 2026–2027
- School Closed/HolidayJul 3, 2026No School
- Teacher In-ServiceAug 3 — Aug 7Teacher Day
- Teacher In-Service / Meet the TeacherAug 10, 2026Teacher Day
- 1st Grading Period Begins / First Day of SchoolAug 11, 2026School Opens
- Labor DaySep 7, 2026No School
- 1st Grading Period EndsSep 18, 2026Grading
- 2nd Grading Period BeginsSep 21, 2026Grading
- Fall BreakOct 12 — Oct 16No School
- 2nd Grading Period EndsNov 6, 2026Grading
- 3rd Grading Period BeginsNov 9, 2026Grading
- Early ReleaseNov 20, 2026Early Release
- Thanksgiving BreakNov 23 — Nov 27No School
- Early ReleaseDec 17, 2026Early Release
- 3rd Grading Period Ends / Early ReleaseDec 18, 2026Early Release
- Winter BreakDec 21 — Dec 31No School
- Winter Break HolidayJan 1, 2027No School
- 4th Grading Period BeginsJan 4, 2027Grading
- Martin Luther King Jr. DayJan 18, 2027No School
- 4th Grading Period EndsFeb 12, 2027Grading
- Bad Weather Make-Up DayFeb 15, 2027Event
- 5th Grading Period BeginsFeb 16, 2027Grading
- Spring BreakMar 15 — Mar 19No School
- Early Release / Bad Weather Make-Up DayMar 26, 2027Early Release
- 5th Grading Period EndsApr 9, 2027Grading
- 6th Grading Period BeginsApr 12, 2027Grading
- Early ReleaseMay 27, 2027Early Release
- Last Day of School / 6th Grading Period Ends / GraduationMay 28, 2027School Closes
- Memorial DayMay 31, 2027No School
Generated by CalendarStates.com · Always verify dates with your school district.
About the District
School Information
Details and contact information for Calvin Nelms Charter Schools.
Calvin Nelms Charter Schools
Address20625 CLAY RD, Katy, TX, 77449
Phone(281) 398-8031
WebsiteWWW.cnchs.net
SuperintendentMr Michael Dean
Academic Facts
Students~324
Schools2+
Grade Range—
Instr. Days—
RegionHarris County
Sources and Checks
Where these dates come from
How the 2026–2027 Calvin Nelms Charter Schools calendar on this page was compiled and what to re-check before you rely on it.
Sources used
- ✓District publication. Dates are taken from the calendar Calvin Nelms Charter Schools published for 2026–2027, shown as images on this page.
- ✓Official website. Cross-checked against WWW.cnchs.net.
- ✓Board-approved version is used where the district marks one.
What we check
- ✓First and last day match the published calendar.
- ✓Breaks and holidays are listed with their full date ranges.
- ✓Teacher / no-school days are included where the district lists them.
- ✓Changes happen. Districts amend calendars mid-year — confirm with Calvin Nelms Charter Schools before booking around a date.
Common Questions
Frequently Asked Questions
Calvin Nelms Charter Schools Calendar 2026–2027 — important dates and answers.
Explore More
Recently Updated Calendars
Other Texas school district calendars — recently added or updated.